Prepare for the AP Environmental Science Exam. Study with quizzes and multiple choice questions covering atmospheric pollution. Each question offers helpful hints and detailed explanations to boost your knowledge and confidence. Tackle the exam with assuredness!

Multiple Choice

What is dry deposition and how does it differ from wet deposition in the context of acid rain?

Dry deposition is the direct transfer of gases and fine particles from the air onto surfaces such as leaves, soil, or water, without any precipitation involved. Wet deposition is the removal of pollutants by precipitation, meaning acids are dissolved in rain or snow and deposited to the surface. In the context of acid rain, acids like sulfuric and nitric acids can reach ecosystems either by dry deposition or by being washed out in rain or snow. So both processes deliver acidity to surfaces and waters, but they occur through different pathways: dry deposition deposits acidity directly onto surfaces, while wet deposition brings acidity down through precipitation.

Dry deposition is the direct transfer of gases and fine particles from the air onto surfaces such as leaves, soil, or water, without any precipitation involved. Wet deposition is the removal of pollutants by precipitation, meaning acids are dissolved in rain or snow and deposited to the surface. In the context of acid rain, acids like sulfuric and nitric acids can reach ecosystems either by dry deposition or by being washed out in rain or snow. So both processes deliver acidity to surfaces and waters, but they occur through different pathways: dry deposition deposits acidity directly onto surfaces, while wet deposition brings acidity down through precipitation.