Question:
The Carboniferous Period is known for 1 the formation of
Last updated: 2/15/2023
![The Carboniferous Period is known for 1 the formation of](https://media.kunduz.com/media/sug-question-candidate/20230215213956524692-4310689.jpg?h=512)
The Carboniferous Period is known for 1 the formation of rich coal deposits 2 the appearance of the first true mammals 3 the first examples of terrestrial gymnosperms 4 a rapid increase in the diversity of marine invertebrates 5 the appearance of the first angiosperms