Which of the following correctly shows the four most abundant gases in the earth's atmosphere in order from most abundant to least abundant? a. oxygen, nitrogen, argon, carbon dioxide b. nitrogen, oxygen, argon, carbon dioxide c. oxygen, nitrogen, carbon dioxide, argon d. nitrogen, oxygen, carbon dioxide, argon

The correct answer is

B. nitrogen, oxygen, argon, carbon dioxide

In fact, the abundance of the gases in the earth's atmosphere is as follows:

1) Nitrogen: 78.0 %

2) Oxygen: 21.0 %

3) Argon: 0.9 %

4) Carbon dioxide: < 0.1 %

cell differentiation  is how generic embryonic  cells  become specialized  cells. this occurs  through a process called gene expression. gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a  cell  functions.

explanation:

answer: option c.

explanation: