Question

16 multiple choice 4 points
what government agency is primarily responsible for enforcing the clean air act in the united states?
federal aviation administration (faa)
department of transportation (dot)
environmental protection agency (epa)
department of energy (doe)
17 multiple choice 4 points
how do hadley cells, ferrel cells, and polar cells work together to influence earths climate patterns?
by causing earthquakes and volcanoes
by distributing heat and moisture around the planet
by creating layers of ozone
by controlling the growth of plants and trees
18 multiple choice 4 points
in a food chain, what role do herbivores play?
they eat producers (plants).
they break down dead organisms.
they eat other herbivores.
they are top predators.

Explanation:

• Question 16: The Environmental Protection Agency (EPA) is tasked with protecting human health and the environment, which includes enforcing the Clean Air Act. The Federal Aviation Administration (FAA) deals with aviation, the Department of Transportation (DOT) with transportation infrastructure and safety, and the Department of Energy (DOE) with energy policy and nuclear safety.
• Question 17: Hadley cells, Ferrel cells, and polar cells are atmospheric circulation patterns. They distribute heat and moisture around the planet, influencing climate. Earthquakes and volcanoes are tectonic processes, ozone layers are related to chemical composition (not these cells directly), and plant/tree growth control is not their function.
• Question 18: In a food chain, herbivores eat producers (plants). Organisms that break down dead organisms are decomposers. Carnivores (not herbivores) eat other herbivores, and top predators are usually apex carnivores (like lions, sharks etc., not herbivores).

Answer:

• 16. C. Environmental Protection Agency (EPA)
• 17. B. By distributing heat and moisture around the planet
• 18. A. They eat producers (plants).