Ask question

Ask question

All categories

Marta_Voda [28]

3 years ago

15

Which of the following statements about the Earth's atmosphere is true? It contains 21% oxygen. It contains 78% water vapor. It

contains 21% carbon dioxide. It blocks all radiation from the sun.

1 answer:

liberstina [14]3 years ago

3 0

The answer is 21% oxygen

You might be interested in

Question 7 (1 point)

aleksandr82 [10.1K]

Answer:

d

Explanation:

7 0

3 years ago

Valence is the number of electrons an atom must gain or lose in order to _____ its outer shell or have a stable octet in its out

balu736 [363]

The answer to the blank i think is bond im not 100% sure though..

5 0

3 years ago

Read 2 more answers

The major source of glucose to elevate a low blood glucose level is ______ stored in the

scoundrel [369]

Glucagon - stored in the pancreas

7 0

3 years ago

Fill in the blank: <br><br> The 5’ end of DNA has the ______ sticking out towards the bone

STALIN [3.7K]

Is this the structure of DNA?

3 0

1 year ago

The purpose of transcription is to create

Levart [38]

Answer:

B. a sequence of DNA bases that duplicates a sequence of RNA bases.

Explanation:

Transcription is the first step in gene expression. It involves copying a gene's DNA sequence to make an RNA molecule.

4 0

3 years ago