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11Alexandr11 [23.1K]
2 years ago
14

Please help me what is the atmosphere?

Biology
2 answers:
KATRIN_1 [288]2 years ago
8 0

Answer:78% nitrogen 21% oxygen 0.9% argon and 0.1% other gases

Explanation:

harina [27]2 years ago
4 0
An atmosphere is a layer of gas or layers of gases that envelope a planet, and is held in place by the gravity of the planetary body.
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You have been hired to forecast future population level for a small country. You know that this country currently has 25 million
Jobisdone [24]

Answer:

Explanation below

Explanation:

It should be understood that the population growth rate of a particular country can be explained or described as the increase in the number of the citizens of that country.

There are so many factors that contribute to an increase in the number of people of a country. These include influx of people into the country, increase in birth rate and decrease in death or mortality rate.

In this case, the growth rate is usually calculated in percentage, so the growth rate should be around 3.5%.

3 0
3 years ago
The red shifts of quasars and connected galaxies can be different by billions of light-years.
lara [203]

Answer: True

Explanation:

Its true.

Hope it helped you.

4 0
3 years ago
What is true about electromagnetic waves from the sun? A. They travel through space without a medium B. They consist of electric
Cloud [144]

Answer:

Option A) is correct.

Explanation:

Electromagnetic waves refer to waves that are created due to vibrations between a magnetic field and an electric field.

Electromagnetic waves do not require a medium to travel through space without a medium. Electromagnetic waves can travel through air,  vacuum of space and solid materials.

So,

Option A) is correct.

3 0
3 years ago
A friend of yours claims to have identified a gene that causes a human disease! Your friend says that they have sequenced the DN
sattari [20]

Answer: Point mutation is easily reversible, thus non-lethal

Explanation:

Point mutation is caused by exchange of a single nucleotide for another. These change is called

1) Transition (when a purine base substitute another purine base, or pyrimidine bases substitute each other)

2) Transversion (when a purine base substitute a pyrimidine base).

However, note that a point mutation can be easily reversed by another point mutation; so, the claim that a nucleotide difference in the Hsr12 gene caused the human disease is inaccurate

3 0
3 years ago
Which factor is least likely to affect the results and interpretation of a functional MRI?
sergij07 [2.7K]
Prescription medication is the least likely to affect the results and interpretation of a functional MRI.

Here are some of the factors that is most likely to affect the results of MRI :

- Caffeinated soda. Caffeinated soda tend to constrict the blood vessels in the brain, which will affect MRI results.
- cancerous growth, will create a huge shadow on MRI results
- sprained ankle, especially if it was fixed with metal bandage, will cause harm during MRI

5 0
3 years ago
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