mention any four governmental agencies working to promote the environment also mention their role in short briefly

Sequoia national park  /  inyo national forest, california, u.s. mount whitney is the tallest mountain in california, as well as the highest summit in the contiguous united states and thesierra nevada—with an elevation of 14,505 feet (4,421 m).

The answer is b im not sure 

Ithink the best answer is d increased stability of all other biomes

Ibelieve it was because of the gas act in order to preserve fuel