Question

The normal concentration of CO₂ in atmosphere is ____________ %

Options

• 0.05 - 0.08

• 0.03 - 0.04

• 0.03 - 0.06

• 0.01 - 0.03

Answer 1

The normal concentration of CO₂ in atmosphere is 0.03 - 0.04 %

Explanation:

CO₂ concentration in the atmosphere is between 0.03 and 0.04 percent. All green plants, which fix carbon mostly into carbs, balance this, thus the carbon cycle operates in nature.