In which colonies was rice a major product

During the Colonial Period, coastal South Carolina was the largest producer of rice in America. The crop arrived in the area around 1685.

Explanation:

Large scale agriculture will definitely lead to increased CO2.

Explanation:

This is due to the fact that plants give out oxygen and take in CO2 which is released by animals and man , so due to the large scale agriculture, the excess oxygen released by plants purifies the air of poisonous gases like carbon monoxide and leaving it with carbon dioxide- CO2.