During the Carboniferous period, plants and animals grew very large due to high concentration of

Question

Question 20 options:

A)

argon in the oceans .

B)

nitrogen in the atmosphere.

C)

carbon dioxide in the oceans.

D)

oxygen in the atmosphere.

Answer 1

During the Carboniferous period, plants and animals grew very large due to high concentrations of:

D) oxygen in the atmosphere.

The Carboniferous period is known for its high levels of atmospheric oxygen, which allowed for larger body sizes in both plants and animals, particularly insects.