Directions: Write the word TRUE if the statement is correct and if not, underline the word or statement incorrect and correct answer on the space provided.
write
1. All x-ray are dangerous because they can damage healthy living cells of the body.
2. Ultraviolet in sunlight radiation produces vitamin D in the skin and gives us tanning effect
3. Microwaves can penetrate the atmosphere of the earth.
4. Radio wave used to transmit sound and picture information over long distance.
5. Infrared wave also damage cells, causing mutation.
6. Gamma rays is absorbed by water molecules, so it can be used for cooking.
7. Over-exposure to UV radiation may cause skin cancer.
8. Low frequency waves are suitable for communication over great distances.
9. Most EM waves are visible to the eye of humans and animals.
10. Visible light are used by banks to check the signature on a passbook.
Modified True or False.

Answers

Answer 1

Answer:It can come from unstable atoms that undergo radioactive decay, or it ... Ionizing radiation can affect the atoms in living things, so it poses a health risk by ... Ionizing radiation comes from x-ray machines, cosmic particles from ... However, as with alpha-emitters, beta-emitters are most hazardous

Explanation:


Related Questions

How does mutation relate to cell division ?

Answers

Mutations can occur in the somatic (body) cells during mitosis or during meiosis when the gametes are formed. Many mutations have no effect on the organisms at all. Occasionally mutations result in a different protein being formed that gives the cell or organism an advantage in a particular environment.

What is the difference between waves and tides, to currents?

Answers

Answer:

a wave is when water is pulled back and then let go and it forms a "wave"

the tide is when the lake, pond, ocean, etc is low tide (not as much water) or high tide ( overfilling water)

Explanation:

hope this helps

have a nice day/night

Mark brainiest please

List the layers of Earth’s atmosphere in order of increasing altitude.

A.
troposphere, stratosphere, mesosphere, thermosphere, exosphere

B.
exosphere, thermosphere, mesosphere, stratosphere, troposphere

C.
troposphere, stratosphere, mesosphere, exosphere, thermosphere

D.
stratosphere, mesosphere, thermosphere, exosphere, troposphere

Answers

Answer:

A

Explanation:

It is the correct answer

Answer:

The answer is A.

Explanation:

HELP ME PLEASEEEEEE ILL GIVE BRAINLIEST

Answers

Answer:

I believe C

Explanation:

I think it's New York and b u e n o s aries

List the four locations for the sensors that control breathing rate.

Answers

Answer:

Dorsal respiratory group – inside of the medulla.

Ventral respiratory group – inside of the medulla.

Pneumotaxic center – various nuclei of the pons.

Apneustic center – nucleus of the pons.

Explanation:

=)

While dry cleaners are small businesses, they generate relatively large volumes of hazardous substances. EPA estimates the average dry cleaner generates 660 gallons of hazardous wastes a year. Unlike petroleum contamination which may break down over time by naturally - occurring bacteria in the environment, the chlorinated solvents that are used by dry cleaners are resistant to biodegradation. As a result, groundwater contamination from dry cleaners has a greater potential to migrate off-site which can be problematic since dry cleaners are often located within proximity to residential neighborhoods. Indeed, a 2002 Florida study found that dry cleaner contamination had migrated off-site at 57 percent of the contaminated sites. Due to these types of environmental hazards when commercial land is sold require a Phase 1 Environmental Assessment according to the Comprehensive Environmental Response, Compensation and Liability Act.

Why would the type of monitoring required as part Phase 1 Environmental Assessments be important if a dry cleaner was being sold?

Group of answer choices

This type of monitoring will allow the government to only sell land to businesses that have environmentally friendly practices.

The monitoring will allow the government to determine which type of business is better for the environment so dangerous businesses can be closed.

The monitoring will indicate any environmental damage done that should be remediated prior to selling the land.

The monitoring prevents the land from being resold to any dry cleaning businesses which can be damaging to the environment.

Answers

Answer:

This type of monitoring will allow the government to only sell land to businesses that have environmentally friendly practices.

Explanation:

This type of monitoring will allow the government to know about the businesses that causes pollution in the environment and the government is responsible to sell the land to those businesses that have used the methods which is environmentally friendly. The environmental friendly practices reduces the damage occur to the environment from human activities so the government must do monitoring of businesses.

What is the role of the centrioles?

Answers

Answer: to help in cell division in animals

Explanation:

How are meiosis and mitosis different?

Answers

Answer:

Function. Mitosis is for the growth, development, repair of damaged cells and replacement of damaged cells in multi-cellular organisms. Meiosis is the production of gametes for sexual reproduction.

Location it takes place in. Mitosis takes place in all somatic cells! Meiosis takes place in the testes and ovaries. (In humans)

Number of daughter cells produced by a single parent cell. Mitosis produces 2 daughter cells from 1 parent cell. Meiosis produces 4 daughter cells from 1 parent cell.

Number of chromosomes each daughter cell contains. In mitosis, each daughter cell contains a diploid number of chromosomes. (2n) In meiosis, each daughter cell contains a haploid number of chromosomes. (n)

Presence of crossing over stage in Prophase. In mitosis, there is no crossing over (homologous recombination) that occurs in Prophase. In meiosis, there is crossing over (homologous recombination) that occurs in Prophase.

Genetically identical to parent cells? In mitosis, daughter cells are clones of their parent cell. Hence they are genetically identical to each other. In meiosis, daughter cells are genetically different to their parent cells as they contain different genetic codes due to crossing over that had led to the recombination of genes between homologues during Prophase I.

Genetically identical to daughter cells? In mitosis, daughter cells are clones of each other. Hence they are genetically identical to each other. In meiosis, daughter cells are genetically different to other daughter cells as they contain different genetic codes due to crossing over that had led to the recombination of genes between homologues during Prophase I.

4. Which unit of measurement do astronomers use when measuring the
distance between two stars found in the Milky Way?
A meter
B light-year
C kilometer
D astronomical unit

Answers

Answer:

D astronomical unit

Explanation:

Hope my answer is correct

LIGHT YEAR WHICH IS b

Do you have a summative in Grade 9 science?​

Answers

Answer:

check with your teacher

Answer:

yes I have

Explanation:

why did you ask

HELP ASAP please i need it

Answers

Answer:

nearmess to mountain ranges

Explanation:

PLEASE HELP I'LL GIVE BRAINLIEST ANSWER!!!
This image shows the relative frequency of banded and non-banded snails in a population. If the frequency of banded snails decreased to 60% and non-banded snails increased to 40%, would you consider the population to be evolving?

Answers

Answer:

The nonbanded are evolving and the banded are not. It looks like something is either eating the banded shrimp and not the unbranded. Or the unbranded shrimp are eating the banded shrimp.

Explanation:

Hope this helps

As per the image of the single-gene trait the phenotypes are shown as per those with and without bands. The phenotypes without band are 20% and that of with band is 80%.

If the population of the snails gets reduced by 60% and non-banded gets 40% then the population that evolves would be that of the nonbranded snails will increase.

Learn more about the relative frequency of banded.

brainly.com/question/23052042.

What is needed in order to give the DNA polymerase a place to start copying DNA? How long is it? What puts it on?

Answers


DNA polymerases add nucleotides to the 3′ end of a polynucleotide chain. ... To initiate this reaction, DNA polymerases require a primer with a free 3′-hydroxyl group already base-paired to the template. They cannot start from scratch by adding nucleotides to a free single-stranded DNA template.

How is DNA replicated? Replication occurs in three major steps: the opening of the double helix and separation of the DNA strands, the priming of the template strand, and the assembly of the new DNA segment. During separation, the two strands of the DNA double helix uncoil at a specific location called the origin.

How many parts can be distinguished in the cerebellum?​

Answers

Answer:

three lobes

Explanation:

three lobes

Explanation:

Based on the surface appearance, three lobes can be distinguished within the cerebellum: the anterior lobe (above the primary fissure), the posterior lobe (below the primary fissure), and the flocculonodular lobe (below the posterior fissure).

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2. animals eat plants and produce carbon dioxide and water how do you animals affect the amount of carbon in the earths atmosphere

Answers

Animals effect it by eating the plants. Plants help produce oxygen for us to breathe.
Hope that helped

Animals eat plants and produce Carbon-di-oxide. Due to this, the concentration of carbon increases in the Earth's atmosphere by the carbon cycle.

What is the carbon cycle?

The carbon cycle is a biogeochemical cycle in which the exchange of carbon between the environment and the organisms occurs.

Plants are producers, they absorb carbon-di-oxide from the environment, and by the process of photosynthesis, they convert it into an organic molecule (glucose). When these plants are consumed by consumers, carbons enter the food chain. It transfers from primary consumers to secondary consumers and then tertiary consumers.

When the consumer respires, carbon is released into the environment in the form of carbon-di-oxide. When these animals die, their bodies decompose and carbon is absorbed again into the atmosphere.

Thus, this is how animals affect the amount of carbon in the atmosphere.

learn more about the carbon cycle, here:

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How is it possible to explain one parent with curly hair, one parent with straight hair, and
a kid with wavy (in-between) hair?

Answers

Answer:

Let's assume curly hair is the dominant trait and trait hair is the recessive trait.

Therefore, our cross is AA x aa. Drawing a Punnett square will then give us all heterozygous individuals.

there for all offspring with have wavy hair

Explanation:

Answer:

Genetic Variation

Explanation:

Mutations, gene flow, and sexual reproduction causes genetic variation. Mutatio is the changes in the sequence of genes in the DNA. Gene flow is the movement of genes from one organism to another,  and sexual reproduction, is where new combinations of genes are created.

A recognizable group of stars in the night sky, that appeared change position throughout the year is called?

Answers

constellations because they change position through the sky and they’re a recognizable group of stars

Answer:

Constellation

Explanation:

A constellation is a group of stars that appears to form a pattern or picture like Orion the Great Hunter, Leo the Lion, or Taurus the Bull. Constellations are easily recognizable patterns that help people orient themselves using the night sky.

why is water molecule called polar

Answers

Answer:

Since oxygen has a higher electronegativity than hydrogen, the electrons of the molecule tend to group closer to the oxygen than to the hydrogen atoms. as well as , water is said to be a "polar" molecule, which means that there is an uneven distribution of electron density.

thats what i found sorry if its confusing

If the medium becomes denser, the angle of refraction will decrease or increase because?

Answers

Answer: The bending occurs because light travels more slowly in a denser medium. The amount of refraction increases as the wavelength of light decreases.

Explanation:

Answer:

Explanation:

The bending occurs because light travels more slowly in a denser medium.  The amount of refraction increases as the wavelength of light decreases.

The complex cyclical transfer of nutrients from the environment to an
organism and back to the environment is referred to as

Answers

Answer:

biogeochemical cycle

Explanation:

answer asap plz I need help!!!

Answers

Super giants........:

what is the fluid excreted by kidneys for emotions?​

Answers

Answer:

The kidneys remove from the blood the nitrogenous wastes such as urea, as well as salts and excess water, and excrete them in the form of urine. This is done with the help of millions of nephrons present in the kidney. The filtrated blood is carried away from the kidneys by the renal vein (or kidney vein).

Answer:

The fluid is called Urea

Explanation:

The kidneys remove from the blood the nitrogenous wastes such as urea, as well as salts and excess water, and excrete them in the form of urine.

Explain A wood frog species in Alaska can survive being frozen
almost completely solid. In spring it thaws and becomes more
active. Wood frogs that live in warmer climates do not have this
trait. Explain how this trait relates to adaptation and speciation.

Answers

Wood frogs are found in the United States throughout the forests of Alabama and Northwest into Idaho. Wood frogs are the only frogs that live North of the Arctic Circle. Adults usually live in woodlands and lay in vernal pools.

Wood frogs live in a variety of habits, from forests to bogs to tundra. They hibernate on land and breed in water.

The Wooded frog does adapt in warmer climates by hibernating by nestling down into the leafy litter on the forest floor.

I majored in Biology

The organisms that are most likely present in the largest numbers are
А
Microscopic algae
B
Herring gull
С
Crab
D
Common seals

Answers

Answer:

Microscopic algae should be the answer

True or False. Every somatic cell in your body has the same copy of DNA Explain your reasoning Answer:

Answers

True
All somatic cells have same genes but the genes whose product is not needed are turned off. Some genes are expressed constitutively and some genes are turned off and on depending upon the requirement of proteins.

The statement "Every somatic cell in your body has the same copy of DNA Explain your reasoning." is a True statement. This is further explained below.

What is a cell?

Generally, All living creatures and bodily tissues are made up of the smallest unit that can exist on its own is called a cell.

In conclusion, Cells are key to human existence.

Read more about Cell

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4. Which could harm human health?
HE.7.C.1.3
A compost
B hazardous waste
© nitrogen
D reclamation

Answers

Answer: Hazardous waste.

Explanation: Hazardous waste is dangerous for our health because it can make us sick or even kill us! Hazardous waste gets poured out on rivers that kill or make the fish sick. When humans fish and eat it, they're eating the waste and that can make them sick.

The tilt of Earth affects the length of
in any particular area.
1. The Moon
2. Shadows
3. Daylight

Answers

3. daylight i believe

50 POINTS Plz helps

Which electromagnetic waves have the highest frequency (use pictures above)


Which color in the visible light waves has the highest wavelength? Which has the lowest?


Which electromagnetic wave is the most dangerous (most energy)?


What is the relationship between wavelength and frequency?


What is the relationship between frequency and energy?

(any troll answers will be reported)

Answers

Gamma rays have the highest frequency (waves are close together/short wavelength)

Highest wavelength is red (distance between peaks is longest), lowest wavelength is violet (distance between peaks is shortest)

Gamma rays have the most energy (highest frequency) and are the most dangerous

Wavelength and frequency have an inverse relationship. As wavelength increases, frequency decreases and visa versa.

Frequency and energy have a direct relationship. As frequency increases, energy increases.

Answer:

See below.

Explanation:

● Gamma rays have the highest frequency.

○ The highest wavelength will be for red while the lowest wavelength will be for violet.

● Gamma rays are more dangerous & also have more energy.

○ Wavelength & frequency have an indirecly proportional relationship.

● Frequency & energy have a directly proportional relationship.

_______

Hope this helps ⚜

Gamma rays are formed on Earth by natural
radioactive decay, nuclear explosions, and _?_ in
thunderstorms.

Answers

Answer:

lightening

Explanation:

its lightening

which protein structure has unique sequences of amino acids

Answers

Answer:

Primary Structure. The unique sequence of amino acids in a polypeptide chain is its primary structure.

Explanation:

Primary structure is the answer
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