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a_sh-v [17]
4 years ago
6

How do massive stars change the atmosphere?

Biology
1 answer:
Inessa05 [86]4 years ago
5 0

The answer is: massive stars create a lot of heavier elements. They produce much of the carbon and oxygen which is hugely important for humans and water respectively.

You might be interested in
Evolution is the
lina2011 [118]

Answer:

Evolution is the <u>biological process</u> that happens over time in a population, giving rise to new <u>species.</u> The theory of evolution states that all organisms alive on Earth today <u>have a common ancestor</u> which lived <u>years ago</u>.

Explanation:

Evolution is one of the fundamental reason of diverse life on Earth today. Principally, this process takes place by changes in genetic elements via mutations and crossing-over. The positive changes (mutations) allow the organism to develop better condition in order to survive in changing environmment. However, if the changes takes place at major scale, it also leads to the creation/development of new species. To explain this further, I have added a photograph where we can see how different organisms were evolved in the history of Earth.

5 0
3 years ago
The normal number of wbcs in a healthy person is _______ /mm³.
iragen [17]
What is the average number of white blood cells found per cubic millimeter of blood?

7,000

I'm not sure if right I ask my sister she is a cna
8 0
3 years ago
Dengue fever is an infectious disease of humans that is caused by a virus. There are four main viral strains, and an individual
Yuri [45]

Answer:

12

Explanation:

Suppose the four different strains are P, Q, R, S. Thus, the first infection can be from any of the four strains and it occurs in 4 ways.

Since an individual cannot be infected again with the strain from which he/she is been previously infected;

Then, at the second time;

The possible number of strain to be infected with = 4-1 = 3 ways

Thus; the number of possible different levels of severity can be viewed by forming two lettered word  P, Q, R, and S without repetition which is:

= 4 × 3

 = 12

7 0
3 years ago
Por qué en algunos países es de día mientras que en otros es de noche?
jek_recluse [69]
I'm not sure if you needed a translation or an answer but i'll give both:)

"Why is it that in some countries it is day while in others it is night"

because at different times of the day the sun hits different areas of the earth. I hope this helps!

porque en diferentes momentos del día el sol golpea diferentes áreas de la tierra. ¡Espero que esto ayude

8 0
3 years ago
Which of the following is NOT a type of cell? *<br> A. Chemical<br> B. Plant<br> C. Animal
posledela

Answer:

chemicals isn't a type of cell

but there is plant and animal cells

7 0
3 years ago
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