In South China during the late Carboniferous period, was the air temperature warmer or cooler than the air temperature in the location today? -Claim 1: It was warmer than it is today.
-Claim 2: It was cooler than it is today.
- Claim 3: No difference- the air temperature was the same as it is today.

The correct option is:

1) It was warmer than it is today

Explanation:

Caboniferous period lasted from around 360 to 300 million years ago. The term Carboniferous means rich deposits of coal. The deposits of coals occured in different region of Europe, Asia and Africa, including South China. In the start of the period, the average temperate was 20°C° which was dropped to 12° in the middle of the period. This cooling and drying resulted in Carboniferous rainforest. Hence, the temperature was warmer than it is today.