Question

it is estimated that roughly 20% of carbon dioxide entering the atmosphere is due to
select one:
a. solid waste disposal.
b. deforestation.
c. nuclear power plants.
d. urbanization.

Explanation:

Deforestation reduces trees which absorb carbon - dioxide. Solid waste disposal doesn't account for 20% of CO₂ emissions. Nuclear power plants produce little to no CO₂. Urbanization has various impacts but deforestation is a major contributor to CO₂ emissions in the given context.

Answer:

B. deforestation