During the Carboniferous Period,
A) the carbon dioxide cycle started to operate for the first time
B) carbon-rich meteorites impacted the Earth
C) the first carbon-based life appeared
D) land was covered with dense forests with the appearance of the first insects and amphibians

Question

Quizplus · Accepted Answer

During the Carboniferous Period (359-299 million years ago), land was covered with dense forests, which contributed to the production of coal deposits. This period is also known as the Age of Amphibians, as the first amphibians appeared during this time. Insects also diversified during this period, with several new orders appearing. The other options, A, B, and C, are not accurate as the carbon dioxide cycle was already established, there is no evidence of such meteorite impacts during this period, and carbon-based life forms existed before the Carboniferous Period.