Answer:Carbon dioxide accounts for most of the nation's emissions and most of the increase since 1990. Transportation is the largest source of greenhouse gas emissions in the United States, followed by electricity generation.
Explanation:
Answer: A. Carbon Dioxide
Explanation: This happens because the coal or oil burning process combines carbon with oxygen in the air to make CO2
Fungi are classified based upon how they reproduce. The rest of the factors do not include anything of their classification.
Anaerobic breakdown of glucose produces lactic acid, which accumulates in the tissues and blood.
