Why is it b? can you explain why or how it is?

B

Explanation:

The paragraph states that the bumps collect water from the air, which allow the beetle to drink. As we know, deserts have very little rain fall and water access is limited. Water is required for life, and these bumps allow the beetle to drink and stay alive. Option A is incorrect because the bumps collect water, but give no advantage in locating food.

significant amounts of nitrogen oxides, carbon monoxide, and other pollution

explanation:

passenger vehicles are a major pollution contributor, producing significant amounts of nitrogen oxides, carbon monoxide, and other pollution. in 2013, transportation contributed more than half of the carbon monoxide and nitrogen oxides, and almost a quarter of the hydrocarbons emitted into our air.

the bald eagle got 50 because everything gets 10% of what they consume and since 50 is ten % of 500 hundred that means the   grasshopper had to have consumed a plant with 5,000 calories of energy