Note that where the ratio of edges of two cubes is 1:2, so the ratio of their surface areas is 1: 4 (Option D)
What is ratio?A ratio in mathematics illustrates how many times one number contains another. For example, if a dish of fruit contains eight oranges and six lemons, the orange-to-lemon ratio is eight to six. Similarly, the lemon to orange ratio is 6:8, while the orange to total fruit ratio is 8:14.
A ratio is an ordered pair of integers a and b, denoted by the symbol a / b, where b does not equal zero. A proportion is an equation that sets two ratios equal to each other. For example, if there is one guy and three girls, the ratio may be written as 1: 3 (one boy equals three girls).
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Full Question:
The ratio of edges of two cubes is 1:2, so the ratio of their surface areas is
A
1 : 3
B
2 : 3
C
1 : 2
D
1 : 4
What isotope has the longest half life: 14C, 40K, 235U, 238U
The isotope with the longest half life is 238U, which has a half life of about 4.5 billion years. This isotope is commonly used in geology and archeology to date rocks and fossils that are millions or billions of years old.
While 14C, 40K, and 235U also have long half lives, they are not as long as 238U. Isotopes and their half lives play a significant role in various fields of science and can provide valuable information about the age and history of various materials and organisms. The half-life of carbon-14 will lengthen if there are more C particles in the bucket.
12.5% is the half-life of a half-life (B)
While the two other naturally occurring carbon isotopes, Carbon-12 and Carbon-13, are relatively stable, Carbon-14 has a half life of 5,730 ± 40 years. Consequently, when the amount of C particles in the bucket increases, the half-life of carbon-14 will also grow, making it more unstable.
The time it takes for one-half of an atomic nucleus of radioactive substances to decay is known as the half-life, and it is 12.5%.
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TRUE OR FALSE68) Physical boundaries are more natural than cultural boundaries.
False. Physical boundaries are not more natural than cultural boundaries.
Physical boundaries, such as mountains or rivers, may exist naturally in the environment, but cultural boundaries, such as language or religion, are created by humans.
While physical boundaries can play a role in separating people, cultural boundaries often have a greater impact on how individuals and groups interact with one another.
Cultural boundaries can lead to the formation of distinct communities and the development of unique cultural practices.
It is important to recognize the role that both physical and cultural boundaries play in shaping our world and our interactions with one another.
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List four sources of internal heat of Earth over its history. Any combination of these is acceptable:
1. Decay of short-lived (and now extinct) radioactive isotopes
2. Decay of long-lived (and still abundant) radioactive isotopes
3. Frictional heating from gravitational compression during accretion
4. Remnant heat from giant impacts of planetesimals and planetary embryos
5. Latent heat of crystallization of the solid inner core
6. Conversion of potential energy to kinetic during descent of liquid Fe through the mantle to form core.
The four sources of the internal heat of Earth over its history are:
1. Decay of short-lived (and now extinct) radioactive isotopes.
2. Decay of long-lived (and still abundant) radioactive isotopes
3 Frictional heating from gravitational compression during accretion
4. Remnant heat from giant impacts of planetesimals and planetary embryos.
In the deep earth, there are three major sources of heat: (1) heat from when the planet originated and accreted, which has not yet been lost; (2) frictional heating, generated by denser core material sinking to the planet's center; and (3) heat from radioactive element decay.
Radioactive decay accounts for approximately 50% of the Earth's internal heat. Because of their abundance compared to other radioactive isotopes, four radioactive isotopes are responsible for most radiogenic heat. They are uranium-238 (238U), uranium-235 (235U), thorium-232 (232Th), and potassium-40 (40K).
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Why would introducing water into a rock result in the formation of magma? In what plate tectonic setting does this type of magma generation occur?
Introducing water into a rock result in the formation of magma because magma can reduce the melting point of rock. In subduction zones general this type of magma generation occur.
Water can mix with a rock's minerals and lower the temperature at which they melt when it is added to the environment. Hydration melting is a phenomenon that can take place at lower temperatures than melting caused by pressure alone.
In subduction zones, where one tectonic plate is forced beneath another, this kind of magma generation takes place. Water and other flammable materials are carried by the subducting plate as it sinks into the mantle. Once released, these volatiles can mix with the rocks and lower the melting temperature in the wedge-shaped upper mantle.
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Provide an example of how people from individualistic and collectivistic cultures would differ in explaining why they won an important sporting event
Italy is part of the Mediterranean coast. Does volcanic activity like Vesuvius suggest the Mediterranean Sea is shrinking or expanding?
Answer: Expanding.
Explanation:
When a volcano explodes it emits magma which flows across the land in the lava flow. This lava later cools into rock which adds space to the currently existing plane. Later life will begin to return to the scorched grounds giving way to habitable space hence expanding.
a farming practice that leaves all of the soil undisturbed and the entire residue of the previous year's harvest left untouched on the fields
no tillage
The farming practice that leaves all of the soil undisturbed and the entire residue of the previous year's harvest left untouched on the fields is called no-till or no-tillage agriculture.
There are various advantages to no-till agriculture over regular tillage practises. For starters, it aids in soil moisture conservation and erosion prevention, which can boost soil health and crop yields.
Second, it can reduce the usage of herbicides and pesticides since the undisturbed soil naturally controls weeds and pests.
Finally, because heavy machinery is not required to till the soil, it can reduce the quantity of fossil fuel used in agriculture.
However, there are significant drawbacks to no-till agriculture. It can, for example, promote soil compaction, which can diminish agricultural yields over time.
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the coast of norway is known for its steep-sided: group of answer choices fiords eskers moraines kettles
Answer:
fiords = deep spectacular steep-sided inlets of the sea that are present at high latitudes where mountains are adjacent to the ocean.
Explanation:
62) Which colonial state practiced local rule and protection of local language and customs?
The colonial state that practiced local rule and protection of local language and customs was the British colony of India.
The British allowed for a level of local autonomy, particularly in areas where the British presence was minimal, such as rural areas.
They recognized the diversity of cultures and languages in India and allowed for the preservation of local customs and traditions.
The British also established the policy of "divide and rule," which meant they played various religious and ethnic groups against each other in order to maintain control.
However, despite these efforts, Indian nationalism began to rise in the late 19th century, and eventually led to independence in 1947.
Nonetheless, the legacy of British rule is still felt in India today, particularly in the English language, the legal system, and some aspects of Indian culture.
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The earth requires ___________ day(s) to make one complete revolution around the sun.A. 1 dayB. 1.25 daysC. 365 daysD. 365.25 days
The earth requires 365.25 days to make one complete revolution around the sun. This period is called a year and is the basis for our calendar system.
The reason for the .25 is that the actual time it takes for the earth to orbit the sun is 365.2422 days. This difference between the actual time and the rounded value of 365 days is why we have leap years every four years to account for the extra time.
Leap years add an extra day, February 29th, to the calendar. Without leap years, our calendar would gradually become out of sync with the seasons, as they are determined by the earth's orbit around the sun.
The exact length of a year is important for scientists studying climatology, astronomy, and other fields that rely on accurate measurements of time and space.
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how have changing agricultural practices affected gender equality?lands used by women to grow food to feed their families have been turned into cash crops with the cash going to men
Changing agricultural practices have impacted gender equality by converting lands used by women for subsistence food production into cash crops, with profits predominantly benefiting men.
The conversion of land historically utilised by women for food production for subsistence into commercial crops, with the ensuing earnings disproportionately favouring males, has frequently had a detrimental impact on gender equality. This may interfere with women's ability to get land, ensure their food security, and earn a living, widening the gender gap in resource ownership, decision-making authority, and economic prospects.
It emphasises the requirement for agricultural practices and policies that take gender equality into account and guarantee equal access to resources and advantages for both men and women in agricultural communities.
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The location of some the oldest and most well known cave paintings is
a. Italy
b. England
c. Germany
d. France
The location of some of the oldest and most well-known cave paintings in Italy. Thus, option A is appropriate.
Along with petroglyphs (the etched, pecked, or carved designs on rock surfaces), these cave wall paintings are known as pictographs and are found all over the world.
In general, cave art refers to the countless engravings and paintings that have been discovered in caves and other natural structures dating to the Upper Palaeolithic (Ice Age), about 40,000 and 14,000 years ago. check out the rock art. Altamira in Spain was the first painted cave recognized as Palaeolithic, or dating from the Stone Age.
The existence of cave paintings demonstrates that some early humans valued art and may have been inspired to produce it. The images depict what was significant to the subjects. Animals including bison, deer, leopards, bears, bulls, and more were frequently shown. They also displayed the appearance of the landscape.
Thus, option A is correct.
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according to the hydrologic cycle, once precipitation has fallen on land, what paths might the water directly take? select all that apply.
According to the hydrologic cycle, once precipitation has fallen on land, the water can take several paths. Firstly, the water can flow over the surface and accumulate in streams, rivers, lakes, and other water bodies.
The correct option is C
This process is known as surface runoff. The water can also infiltrate the soil and percolate deeper into the ground to become groundwater. The groundwater can move laterally and discharge into streams and rivers, or it can be extracted for human use.
Additionally, some of the precipitation may be taken up by plants and evaporate from their leaves, a process known as transpiration. This is a part of the larger process of evapotranspiration, which is the combination of evaporation and transpiration.
Finally, some of the precipitation may also evaporate directly from the surface before it can infiltrate into the ground or become surface runoff. These different paths are all interconnected and form the hydrologic cycle, which describes the continuous movement and transformation of water on Earth.
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Complete question is:
According to the hydrologic cycle, once precipitation has fallen on land, what paths might the water directly take? Choose all that apply.
A) Evaporation/transpiration
B) Runoff into the sea
C) Runoff into a river
D) Infiltration into the ground
where is the location at coordinat -latitude = 15°S, longitude = 45°W
The location at coordinate -latitude = 15°S, longitude = 45°W refers to a point on the Earth's surface located 15 degrees south of the equator (in the southern hemisphere) and 45 degrees west of the Prime Meridian (which runs through Greenwich, England).
This point is located in the Atlantic Ocean, approximately 200 miles off the coast of eastern Brazil. Coordinates are a way of describing the position of a point on the Earth's surface. They consist of two measurements: latitude and longitude.
Latitude is the measurement of a point's position relative to the equator, which is an imaginary line that circles the Earth at 0 degrees latitude. Longitude, on the other hand, is the measurement of a point's position relative to the Prime Meridian, which is an imaginary line that runs from the North Pole to the South Pole, passing through Greenwich, England.
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the average thickness of the east antarctic ice sheet is: group of answer choices 15,670 feet 7,300 feet 4,200 feet
The average thickness of the East Antarctic ice sheet is approximately 7,300 feet. Therefore the correct option is option B.
The typical thickness of the East Antarctic ice sheet is about 7,300 feet (2,200 metres).
The East Antarctic ice sheet is one of the two major ice sheets in Antarctica, the other being the West Antarctic ice sheet.
As a result, it is the world's thickest ice sheet. The ice sheet holds over 2.2 million cubic kilometres of ice, which is comparable to roughly 70% of the world's fresh water.
It is a crucial part of the Earth's climate system since it regulates global sea levels and ocean circulation patterns. Therefore the correct option is option B.
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The triangle shown in the coordinate plane below was rotated 180°. If the measure of angle
was 60°, what is the measure of angle
in the transformed figure?
2 triangles graphed on the coordinate plane. Triangle ABC is the pre-image. The rotated triangle is DEF. Angle A corresponds to angle D. Angle B corresponds to angle E. Angle C corresponds to angle F.
The measure of angle in the transformed triangle DEF is 120°.
How did we get the value?The fact that the triangle was rotated 180°, each angle in the pre-image triangle will correspond to an angle in the transformed triangle with the same measure. With that, angle D will correspond to angle A and will also measure 60°.
So, find the measure of angle F, there is need to rely on the elementary knowledge that the sum of the angles in a triangle is always 180°.
In the pre-image triangle ABC, the sum of the angles is:
angle A + angle B + angle C = 180° (the sum of angles in a triangle)
Since the the given measurement of angle was 60°, other angles will be = 60° each, so, we have, 60° + 60° + 60° = 180°
After the rotation, the transformed triangle DEF will have the same sum of angles, which means:
angle D + angle E + angle F = 180°
Substituting the known values, we get:
60° + angle E + angle F = 180°
Solving for angle F, we get:
angle F = 120°
Therefore, the measure of angle F in the transformed triangle DEF is 120°.
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check my work a hurricane just off the coast of northern florida is moving northeastward, parallel to the eastern seaboard. suppose that you live along the east coast of north carolina. if the hurricane passes east of you, the strongest winds would most likely be blowing from which direction?
Typhoons form in the northwestern Pacific Ocean, while hurricanes form in the Atlantic Ocean or the northeastern Pacific Ocean as powerful tropical cyclones.
A tropical storm that has sustained winds of 74 mph or greater is referred regarded as a hurricane. A storm's eye typically measures 20 to 30 miles in width and can reach distances of 400 miles. Storms can be dangerous because of their torrential downpours, strong gusts, and storm surges.
The Taino term hurricane, which means a malevolent wind demon, is where the name hurricane originates.
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The tropical monsoon climate consists mostly of __________.
A) tropical rain forest
B) Mediterranean
C) desert
D) steppe
E) savanna
Savanna is the type of vegetation that is characteristic of the tropical monsoon climate. The correct option is E.
The tropical monsoon climate is typically found in regions near the equator, where there is a distinct wet and dry season.
During the wet season, which usually lasts for several months, there is heavy rainfall and high humidity, which promotes the growth of vegetation such as grasses and small trees.
During the dry season, which can last for several months, there is little to no rainfall, and the vegetation may become dry and brown. The combination of wet and dry seasons in the tropical monsoon climate supports a diverse range of plant and animal life.
Thus, the ideal selection is option E.
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the impacts of climate change on food and agriculture include all of the following except: reduced production of wheat, maize, and other staple crops in much of the world, especially parts of africa and asia increased production of staple crops in some parts of the world, such as parts of canada and russia. reduced growth of most weeds, enhancing crop production. reduced nutrient content of some foods. increased crop loss due to plant diseases.
The impacts of climate change on food and agriculture include all of the following except reduced growth of most weeds, enhancing crop production.
Climate change affects agriculture through reduced production of wheat, maize, and other staple crops, particularly in parts of Africa and Asia.
Conversely, some regions, like parts of Canada and Russia, may experience increased production of staple crops due to changes in temperature and precipitation patterns.
Additionally, climate change can lead to reduced nutrient content in some foods and increased crop loss due to plant diseases.
However, the growth of weeds is generally not reduced; in fact, climate change may facilitate the growth of some invasive weed species, making it more difficult to maintain crop productivity.
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a(n) is a deposit created by a former meltwater channel or tunnel in glacial ice that was filled with sand and gravel.
a(n) continental margin usually lacks a continental rise and an abyssal plain and is associated with convergent plate boundaries.
A continental margin is the region where the oceanic crust meets the continental crust. This margin can be divided into two types: passive and active.
A passive continental margin is usually found at divergent plate boundaries and has a wide continental shelf, a continental slope, and a continental rise.
In contrast, an active continental margin is associated with convergent plate boundaries and lacks a continental rise and an abyssal plain.
Instead, it has a steep continental slope that plunges directly into the oceanic trench.
The lack of a continental rise and abyssal plain is due to the intense tectonic activity that occurs at these boundaries, resulting in the subduction of the oceanic plate beneath the continental plate.
This process creates a deep oceanic trench and prevents the accumulation of sediments that would form a continental rise and abyssal plain.
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why is earthquake damage likely to be more severe for buildings built on unconsolidated sediments as opposed to solid rock?
Earthquake damage is likely to be more severe for buildings built on unconsolidated sediments as opposed to solid rock due to the differences in the physical properties of the two materials.
Unconsolidated sediments, such as loose soil, sand, or gravel, are less resistant to earthquake seismic waves.
These sediments can liquefy after an earthquake, causing the ground to behave like a liquid and lose its ability to support houses and other structures.
This can cause considerable damage, such as foundation failure, structure collapse, and settlement caused by soil liquefaction.
Solid rock, on the other hand, is significantly more resistant to seismic waves and may absorb and diffuse the energy produced by an earthquake.
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Which climate supports little or no agriculture?
A) complex mountain
B) mediterranean summer--dry
C) tropical and subtropical desert
D) midlatitude steppe
E) tropical and subtropical steppe
The climate that supports little or no agriculture is the tropical and subtropical desert climate. The correct option is C.
This climate is characterized by hot and dry weather with very little precipitation, making it difficult for plants to grow.
In this type of climate, the soil is often too dry and infertile, and the extreme temperatures can make it challenging for crops to survive.
Desertification is a common issue in these areas, which is the process of land turning into a desert due to human activities and climate change.
Although some crops such as cacti and succulents can survive in these conditions, the lack of water and fertile soil means that agriculture is not a viable option in this climate.
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did seeing the photos help you sort the fliches ?
Based on clues, yes, I can identify the difference of the beaks which help me analyze the similarity of the finches.
What are clues?Context clues help to find the meaning of a word taking into account the words that surround the unknown word that make us infer the meaning.
Also called visual indices, these words are described or defined by other words that appear in the same sentence.
I can identify the difference of the beaks which help me analyze the similarity of the finches .
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Modern genetic foods vs. artificial selection
The primary distinction between artificial selection and genetic engineering is that artificial selection selects already existing traits by breeding individuals with desirable traits, whereas genetic engineering modifies the genetic composition of plants or animals by introducing new traits genes or silencing genes.
Artificial selection refers to the identification of desirable qualities in plants and animals by humans, as well as the actions taken to improve and maintain such traits in future generations. Artificial selection operates in the same way as natural selection, except that in natural selection, nature makes the decisions, not humans.
Genetic engineering is a new biotechnology field. It enables the modification of an organism's genetic makeup. Recombinant DNA can be used to introduce desirable features into an organism.
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(True/False)The geologic timescale was originally developed by using radiometric dating.
The geologic timescale was originally developed by using radiometric dating. The given statement is False.
The geologic timescale was originally developed based on relative dating techniques, which involved comparing the ages of different rock layers and fossils in order to determine their relative ages.
Radiometric dating, which involves using the decay of radioactive isotopes to determine absolute ages, was developed later and has been used to refine and improve the accuracy of the geologic timescale. However, the original development of the timescale did not rely on radiometric dating.
Thus, the mentioned given-above statement is false.
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TRUE OR FALSE66) Slovenia is a good example of a nation-state.
FALSE. Slovenia is not a good example of a nation-state.
While Slovenia may be considered a relatively homogenous nation, it is not a perfect example of a nation-state.
A nation-state is a sovereign state that is primarily made up of one single nation, meaning that the majority of its citizens share a common cultural and historical background.
Additionally, Slovenia has experienced significant immigration in recent years, further complicating its status as a nation-state.
Furthermore, nation-states are often seen as having a strong sense of national identity & unity, but Slovenia has a complex history that has led to tensions b/w different regions and cultural groups within the country.
Therefore, while Slovenia may share some characteristics with a nation-state, it cannot be considered a perfect example of one.
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The deepest part of the ocean is theabyssal zoneeuphotic zoneestuary zonebathyal zonebenthic zone
The deepest part of the ocean is the abyssal zone.
An area of the pelagic zone of the ocean is known as the abyssal zone or abyssopelagic zone. This zone is always in the dark around 4,000–6,000 meters below the surface. 60% of the surface of the Earth and 83% of the ocean are covered by it.
Through a substantial portion of its bulk, the abyssal zone exhibits temperatures of about 2-3 °C. There are no plants creating oxygen since there is no light, thus the majority of the oxygen we breathe comes from ice that has long since melted from the polar regions. For species unable to swiftly re-enter the oxygen-enriched ocean above, the water along the seabed of this zone is really oxygen-free, making it a death trap.
Therefore, Option A is the correct answer.
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Why is S-wave curve steeper than the P-wave curve? Hint - compare time of travel to the distance. Draw your conclusion about velocity of waves from differences in time of travel.
The S-wave curve is steeper than the P-wave curve because the S-wave travels at a slower velocity compared to the P-wave. This is evident when comparing the time of travel for each wave.
The P-wave arrives at a seismograph station before the S-wave, indicating that it has traveled a shorter distance than the S-wave. The S-wave, on the other hand, takes a longer time to arrive at the station, implying that it has traveled a greater distance than the P-wave.
From these differences in time of travel, we can draw the conclusion that the velocity of the S-wave is slower than that of the P-wave. This is because the velocity of a wave is directly proportional to the distance it travels over a given time.
Therefore, if the S-wave takes a longer time to arrive at a station, it must have traveled a greater distance, which means that it has a slower velocity compared to the P-wave.
In summary, the steeper curve of the S-wave compared to the P-wave indicates that the S-wave travels at a slower velocity. This can be attributed to the longer time of travel for the S-wave compared to the P-wave.
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If we were playing Family Feud, most Earth scientists surveyed (based on the summary given in lecture) would say that "modern style" plate tectonics started on Earth during which interval?
According to most Earth scientists, "modern style" plate tectonics started on Earth during the Archean Eon.
The Archean Aeon, sometimes known as the Archaeozoic in earlier sources, is the second of Earth's four geologic aeons, spanning the period 4,000 to 2,500 million years ago. The Archean Aeon came before the Hadean Aeon and was followed by the Proterozoic.
Plate tectonics is a scientific theory that explains how significant landforms evolve as a result of underground movements on Earth. The hypothesis, which gained traction in the 1960s, revolutionized the earth sciences by describing a wide range of phenomena such as mountain formation events, volcanoes, and earthquakes.
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