Question

During the carboniferous period, plants and animals grew very large due to high concentration of question 3 options:

a) oxygen in the atmosphere.
b) carbon dioxide in the oceans.
c) nitrogen in the atmosphere.
d) argon in the oceans .

Answer 1

During the Carboniferous period, plants and animals grew large due to the high concentration of oxygen in the atmosphere, a result of vast swamp forests that increased atmospheric oxygen.

Step-by-step explanation:

The Carboniferous period, which spanned from around 360 to 300 million years ago, was a time when plants and animals grew very large. This massive growth was made possible by a high concentration of oxygen in the atmosphere. The extensive swamp forests of the period, consisting of club mosses, horsetails, and other large plants, contributed to the drastic increase in atmospheric oxygen. This oxygen-rich environment facilitated the evolution of larger and more complex organisms, giving rise to extensive coal deposits that characterize the period and provided the necessary conditions for the enormous size of both flora and fauna.