compared to the surface temperature and luminosity of massive stars in the main sequence, the smaller stars in the main sequence are
Answers
Answer:
Betelgeuse
b.Polaris
c. Aldebran
d.Sirius
e. The Sun
Explanation:
arent sure
In comparison with the surface temperature and luminosity of massive stars in the main sequence, the smaller stars in the main sequence are: cooler and less luminous.
A star is a giant astronomical or celestial object that contains a luminous sphere of plasma and bounded together by its own gravitational force.
Generally, a star typically comprises two (2) main hot gases and these are:
I. Hydrogen (H).
II. Helium (He).
Main sequence refer to stars that can fuse hydrogen atoms in its core, to form helium atoms.
Some examples of a main sequence include the following;
Sun (closest to planet Earth). Antares. Canopus. Vega. Betelgeus.The luminosity of a star can be defined as the total amount of light radiated by the star per second. Also, it is measured in Watts (W).
In conclusion, smaller stars in the main sequence are cooler and less luminous than massive stars in the main sequence.
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Related Questions
What makes human beings separated from animals and plants?
Answers
Answer:
Humans are able to use their brains at the fullest capacity, while plants just do one thing all the time, animals do change a bit, but they mainly live on what they have to do. Humans are able to create things, make languages, and establish religions.
Explanation:
Hope this helps
diffusion and osmosis are both forms of
a. organelles
b. channel proteins
c. active transport
d. passive transport
Answers
Answer:
D
Explanation:
Diffusion and osmosis are both passive forms of transport because there is no energy need to transport something such as water from an area of high pressure, to an area of low pressure.
Help ASAP!! (idk what the correct opic for this is-)
There are many natural processes that shape the Earth's surface. These processes can act as constructive forces, destructive forces, or both.
In general, natural processes act as constructive forces
A.
when they build up landforms.
B.
when they wear down landforms.
C.
only at high elevations.
D.
only at sea level.
Answers
Answer:
Explanation:the correct answer is "when they build up landforms"
Answer:
When They Wear down Landforms
Explanation:
What does it mean to classify things?
Answers
Answer:
to clasify is to create a group that pertains to a group with the same characteristics
Explanation:
Earths Atmosphere related question 98 points I will reward brainliest PLEASE help me with this!!!!
Answers
Answer:
Hey mate,here is your answer. Hope it helps you
Explanation:
Local winds are basically of two types:-
Land BreezeSea BreezeThe sea breeze is a thermally produced wind blowing during the day from the cool ocean onto the adjoining warm land. It is caused by the difference in the rates of heating between the land and the ocean. The bigger the difference in temperature, the stronger the wind.
For example, hot land temperatures next to cold ocean temperatures will create a stronger sea breeze than land temperatures that are only a little bit warmer than the ocean temperatures. So during the afternoon when the temperatures differences are normally at their highest, the sea breeze will normally be at its strongest, bringing relief from the heat to beachgoers.
This process also works in reverse at night. Only this time it is known as the land breeze. The land breeze is a coastal breeze at night blowing from the land to the ocean. It is caused by the difference in the rates of cooling of the land and of the ocean. Once again, the bigger the difference in temperature between the two, the stronger the wind.
Answer: The explorer should enter the harbor at daytime, because it is very bright and he can see where he goes. The explorer should go home when it is dark. Hope this helps!
Explain why organisms that have a narrow temperature tolerance range will be more susceptible to climate change.
Answers
Answer:
Organisms that have a narrow temperature tolerance range cannot survive in a wide variety of temperatures. Even small changes in climate can affect organisms that do not have a high tolerance for change. These organisms will be forced to adapt, relocate, or die off. If climate change is widespread, such organisms may not be able to survive.
Explanation:
edg2020
These organisms are known as stenothermal , since they are restricted to narrow range of temperature, any change in temperature would affect them significantly.
What are stenotherms?A stenotherm is a species or living organism only capable of living or surviving within a narrow temperature range. The opposite is a eurytherm, an organism that can function at a wide range of different body temperatures.
Stenothermal creatures require environments that maintain a constant temperature throughout the year in order to survive. They can only function within a very specific temperature range. Polar regions and tropical regions both have a temperature range that is rather small.
Crustaceans, insects, salmon, penguins, pythons, and other animals, such as these, are all examples of stenothermal species.
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please help. i don’t understand
Answers
Answer: A is B
B is A and A is C
Explanation: because the enzyme lowers the activation energy to speed up the reaction.
Read this sentence from "The Man in the Arena".
"There is little use for the being whose tepid soul knows nothing of, great and generous emotion, of the high pride, the stern belief, the lofty enthusiasm, of the men who quell the storm and ride the thunder."
How does the sentence develop Roosevelt's claim?
A.
It dismantles the power that the critics attempt to hold over those who are in the arena.
B.
It belittles the critics and the doers for their tepid souls.
C.
It supports the unification of the critics and the doers.
D.
It empowers the critics to keep their antics going and discourage the doers of good deeds.
Answers
It dismantles the power that the critics attempt to hold over those who are in the arena.
The answer is option A.
What is the man on the court saying?My favorite quote, as well as LeBron James' favorite, quotes "Man in the Arena" from Teddy Roosevelt. It goes like this: He’s not a public critic; not someone who points out how a powerful person stumbles, or where the perpetrator could have done better.
What is the meaning of the man in the arena?A person who is deeply involved in a situation that requires courage, skill, or stamina, unlike someone who sits on the sidelines and watches, is often referred to as a "field man".
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Stomach contractions churn and push the liquid chyme and into the small
intestines. This is an example of.... *
Mechanical Digestion.
Chemical Digestion
Both Mechanical and Chemical Digestion
Neither Mechanical nor Chemical Digestion
Answers
Answer:
try a mechanical digestion
Explanation:
Which of the following correctly identifies the function of the cell membrane?
A
controls what enters and leaves the cell
B
produces protein and enzymes
C С
controls the cell function
D
stores genetic infromation for the cell
Answers
Answer:
a controls what enters and leaves the cell
Explanation:
PLEASE HELP !
Which of these factors best explains why liquid water exists on Earth?
A. Presence of living things
B. Moderate temperatures
C. Lack of gravity
D. Lunar tides
Answers
The factor that best explains why liquid water exists on Earth is moderate temperatures. Therefore option B is correct.
Liquid water exists on Earth primarily due to the presence of moderate temperatures. Water is a unique substance because it has a relatively high boiling point and a wide range of temperatures at which it remains in a liquid state.
The average surface temperature of the Earth, along with the atmospheric pressure, allows water to exist as a liquid under normal conditions.
The lack of gravity is incorrect because gravity is essential for the existence of liquid water. Gravity keeps water molecules attracted to each other, preventing them from dispersing into the atmosphere.
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The photograph shows a chemical change taking place over time. Which statement best explains the chemical change? A. A substance breaks down into one or more new substances. B. An acid dissolves in water into tiny particles that cannot be seen. C. An acid and a base combine to form salt and water. D. A substance reacts with oxygen and releases huge amounts of energy
Answers
Answer:
Answer is A (A Substance breaks down into one or more new substances)
Explanation:
The statement which best explains chemical change is that a substance breaks down into one or more new substances. Thus, the correct option for this question is A.
What is a Chemical change?A chemical change may be defined as a type of change that involves an alteration in materials into another, new materials with different properties, and one or more than one new substance formed. It occurs when a substance combines with another to form a new substance.
According to the context of this question, the image shown below determines a substance that is yellow in color and breaks down into one or more new substances that are white and blue in color. A chemical change takes place when one chemical substance is transformed into one or more different substances, such as when iron becomes rust.
Therefore, the correct option for this question is A.
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What is a carbon producer
Answers
Answer:
There are many many things in the world that produces Carbon. The largest source of greenhouse gas emissions from human activities in the United States is from burning fossil fuels for electricity, heat, and transportation. All of these produce Carbon into the atmosphere and warm the planet
What does Mutualism mean? (Give definition, example & explanation)
Answers
The Earth's biodiversity is determined by the variety of all living organisms on Earth. In recent years, ecologists and other scientists have encouraged the preservation of global biodiversity through the protection and management of natural ecosystems. Preserving the biodiversity of the Earth is important because
Answers
Answer-:
Preserving the biodiversity of Earth is important because biodiversity increases the efficiency of ecosystems where every species, no matter how small, has an important role to play. A greater number of species of plants means a larger range of crops. Greater diversity of organisms guarantees ecological survival for all lifeforms
Explanation:
REASONS WHY PRESERVATION OF THE EARTH'S BIODIVERSITY IS IMPORTANT-
ECOSYSTEM PRODUCTIVITY - One of the key reasons we should continue to concentrate on biodiversity protection is that it helps to improve the efficiency of the ecosystem. Naturally, a properly working ecosystem would be more immune to extreme environmental factors, such as climate change.HEALTH DETECTIONS -The vast number of medical advances waiting to be made is one of the most significant reasons why we should continue working on saving biodiversity. To develop new cancer therapies and more, scientists use observations of plants , animals, and even microbes. As a matter of fact, all human drugs must first be tested before being tested on humans in laboratory animals. This is essential for determining their toxicity, dosing, as well as effectiveness. In some of the most remote sections of the planet, many of the animals used in these discoveries are also included. Recreation and Natural Beauty - The value of natural beauty is another great explanation why we should continue focusing on protecting biodiversity. There are several historical sites around the country that need to be preserved to maintain their status for future generations to enjoy, such as the redwood forest. These trees regularly have a lifespan of 600 years in the case of the redwoods. Some are as old as 2,000, too. Their growth is extremely sluggish, however. Wild and natural environments provide ways to get away from urban environments. In addition, people can enjoy outdoor activities such as bird watching, canoeing, hiking, and photography of nature. The Ecosystem 'Survival - With a few exceptions, to survive, each species on Earth relies on the services of other species. This partnership is part of the idea of what an ecosystem is. The relationship between soil, plants , and bacteria is a pertinent example. This is known as the period of nitrogen. Other examples which are important include -: Animal waste which nourishes the soil, Crops also produce straw, which is an animal food source, As natural nitrogen fixers, algae represent and Aerate the soil with rats.Economic Benefits -: Many advantages have been provided to humans through biodiversity, and many come in the form of products. These products are extracted and sold, and everything from crops to medicines is included.Hence, preservation of the biodiversity of Earth is important from all aspects of life.
What is the hypothesis? The higher the temperature of water, the faster an egg will cook
Answers
Answer:
The higher the temperature of the water, the faster an egg will cook
Does this help?
which characteristic of life is the most important in determining which item (plant or car) is alive
Answers
Answer:
Growth, excretion, energy, reproduce
Explanation:
A plant has the ability to makes it own food via photosynthesis unlike cars (they arent living because they don't have growth and reproduce)
what chemical substance is produced by the mitochondria
Answers
Answer:
ATP , a complex organic chemical found in all forms of life, is often referred to as the molecular unit of currency because it powers metabolic processes. Most ATP is produced in mitochondria through a series of reactions
Explanation:
Mitochondria convert chemical energy from the food we eat into an energy form that the cell can use. This process is called oxidative phosphorylation.
Hope this helps
Patriotism and education are traditional American values.
Please select the best answer from the choices provided
Тrue or false
Answers
Answer:
True
Explanation:
Answer:
It is a true statement that "Patriotism and education are traditional American values."
The United States of America
The United States of America are bound together by certain core values that hold the entire country together. These values are reverberated any time the ideals of the country are discussed.
Two of the key values of the American society are;
Patriotism
Education
Hence, it is a true statement that "Patriotism and education are traditional American values."
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Explanation:
What problems can pseudoscience cause for society?
Answers
Answer:
It is quite difficult to picture a pseudoscientist—really picture him or her over the course of a day, a year, or a whole career. What kind or research does he or she actually do, what differentiates him or her from a carpenter, or a historian, or a working scientist? In short, what do such people think they are up to?
… it is a significant point for reflection that all individuals who have been called “pseudoscientists” have considered themselves to be “scientists”, with no prefix.
The answer might surprise you. When they find time after the obligation of supporting themselves, they read papers in specific areas, propose theories, gather data, write articles, and, maybe, publish them. What they imagine they are doing is, in a word, “science”. They might be wrong about that—many of us hold incorrect judgments about the true nature of our activities—but surely it is a significant point for reflection that all individuals who have been called “pseudoscientists” have considered themselves to be “scientists”, with no prefix.
Activity
In this activity, you will research the genetic diversity in two fish variants. The Mexican tetra (Astyanax mexicanus) has two notable variations: the surface variety and the blind cave fish variety. In this activity, you’ll use credible websites to find the following information about these two fish:
What type of habitat does each fish live in?
How do their physical characteristics differ?
How are they similar?
Can the two types mate with each other?
Why are their characteristics advantageous to their environments?
When you’ve found the information, answer the following questions.
Part A
What are the similarities and differences between the two fish varieties?
Answers
Answer:
The surface fish lives near the surface of the water, but the blind fish live in caves.
Explanation: yes
Answer:
The surface fish live near the surface of the water, and the blind cave fish live in dark subterranean caves. The surface fish have eyes and pigmentation on their bodies. The blind cave fish don’t have eyes, and they’re often albinos.
Explanation:
This is the sample naswer dont get marked for plagairism.
what’s the difference between red blood cells and animal cells
Answers
Answer:
the red blood cells get there color from heme, and animals blood cells lack nuclei and other internal structures.
Explanation:
hope this helps
Which of the following is a carbohydrate? *
5 points
DNA
Insulin
Wax
Sucrose
All the above
Answers
Answer:
sucrose
Explanation:
i took the test
An example of the carbohydrate among the following is sucrose as others are examples of nucleic acid, protein, and other biomolecules.
Carbohydrate is a type of macronutrient present in various food items and drinks. It is made up of Carbon, hydrogen, and oxygen where hydrogen and oxygen are present in the 2:1 ratio. There are also called sugars.
Sucrose is an example of a naturally found carbohydrate that is made up of one atom of glucose and one atom of fructose joined together.These sugars are also produced from plants and fruits, sugarcane in industries.As it is made of two carbohydrates monomers it is a disaccharide.DNA is an example of nucleic acid, insulin is a peptide, and wax is made up of fatty acids.
Thus, the correct answer is - sucrose.
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Question 17 Multiple Choice Worth 5 points)
(0101 MC)
For many generations, a forest has been the home of a single species of bird, these birds primarily eat insects off the forest floor One year, humans living in the area accidentally introduce a new
species of bird to the forest. This new species has the same diet as the existing species. Which description predicts what will most likely result from these two species of bird living in the same
ecosystem?
Both bird species cannot occupy the same niche and therefore, one species will die of
D
O Both bird species would share the forest and have plenty of food and resources
One bird species will adapt and feed on different organisms in the forest
The established species will battle the introduced species of bird until death
Answers
Unless this species of bird is very territorial then it would be the last one
Hope this helps!! :)
Which cycle is NOT present in the atmosphere?
a Phosphorus Cycle
b Carbon Cycle
c Nitrogen Cycle
d Water Cycle
Answers
Answer: A. Phosphorus Cycle
If anyone can answer all of these, they deserve big thanx!
Last questions of the night, I also need these before 12am and it’s almost 12!
Answers
Answer:
#4 177.5
Explanation:
add all the numbers and divide by 6
Cellulose that makes up plant cell walls and 50% of all wood is an example of a complex, structural one of these macromolecules. *
Protein
Carbohydrate
Answers
Answer:
Carbohydrate
Explanation:
Cellulose is a type of carbohydrate
Which of the following statements is correct? *
Protons are found in the nucleus of an atom
Neutrons are negatively charged
Protons are negatively charged
Electrons are found in the nucleus of an atom
Answers
In the outer layer of the sun, energy is transported outward by the rising of hot plasma and sinking of cooler plasma. This transfer is known as
Answers
Answer: Convection.
Explanation:
We have 3 types of heat transmission.
Radiation: Heat is transported as electromagnetic waves, this is not the case shown here.
Conduction: When we have two objects with different temperatures and we put them in contact, the system will want to go to equilibrium (both objects have the same temperature) so the hot object will give heat to the cooler object. We usually see this with solid objects.
Convection: It is the heat transfer due to the bulk movement of the molecules, so this need a material medium (it can not take place in solids, because the position of the molecules is fixed in the solids).
Then the rising of hot plasma and sinking of cooler plasma is convection.
How will our sun change position on the HR
diagram?
Answers
Answer:
Around the year 7.1 billion AD, the Sun will begin evolving so rapidly that it will cease to be a main-sequence star. Its position on the H-R diagram will begin to shift from where it is now, near the center, towards the upper right where the red giants live.
