Question

Scientists have studied the fossilized shells of prehistoric, single-celled marine organisms. Some of these shells were thin, which indicates that the organisms lived in very warm ocean water. Such evidence indicates that the climate during this time may have been

Answer 1

Answer: The answer is tropical climate. At that time there was no Antarctica or Arctic.

Explanation:

I hope I have helped you.

Answer 2

The answer to this question is tropical.