Question

scientists are investigating the cause of the large increase in atmospheric carbon dioxide concentration since about 1800. which of the following provides the best explanation for the increase?
change in atmospheric co2
concentration over time

use of desalinization plants
use of fossil fuels by humans.
use of traditional farming practices
use of hydroelectric power

Explanation:

Since the Industrial Revolution (around 1800), human use of fossil fuels (coal, oil, gas) has increased. When fossil fuels are burned, carbon dioxide (\(CO_2\)) is released. Desalinization plants remove salt from water and do not significantly contribute to \(CO_2\) emissions. Traditional farming practices (like subsistence farming before 1800) do not cause the large - scale \(CO_2\) increase shown. Hydroelectric power is a renewable energy source that does not burn fuels to release \(CO_2\).

Answer:

Use of fossil fuels by humans.