Biology

The sector most responsible for CO₂ emissions is: A.Transportation

Explanation:

The transportation sector is the largest contributor to CO₂ emissions globally. This includes emissions from cars, trucks, airplanes, ships, and trains, all of which primarily rely on the combustion of fossil fuels (like gasoline, diesel, and jet fuel), releasing significant amounts of carbon dioxide into the atmosphere.

Other sectors:

B.Agricul...