Question

which spheres of earth are directly influenced when human - caused air pollution leads to acid rain on limestone rocks?

atmosphere, cryosphere, geosphere

cryosphere, hydrosphere, biosphere

geosphere, atmosphere, hydrosphere

biosphere, atmosphere, cryosphere

Explanation:

1. Analyze each sphere:

• Air pollution (atmosphere) leads to acid rain. Acid rain falls into water bodies (hydrosphere) and also affects rocks (geosphere) by causing acidification and weathering.
• The cryosphere (frozen water parts like ice caps) is not directly involved here as the process is about air pollution, acid rain, and rock interaction. The biosphere (living organisms) is not directly the focus of the sphere interaction in this specific process of acid rain affecting limestone rocks.

1. Evaluate options:

• Option 1: Cryosphere is not directly involved, so eliminate.
• Option 2: Cryosphere and biosphere are not the main spheres here, eliminate.
• Option 3: Atmosphere (air pollution), hydrosphere (acid rain in water), geosphere (limestone rocks) are all directly involved.
• Option 4: Cryosphere and biosphere are not directly involved, eliminate.

Answer:

C. geosphere, atmosphere, hydrosphere (assuming the third option is labeled C, as per the standard multiple - choice labeling where the third option is often C. If the original question had different labels, adjust accordingly. But based on the content, the correct set of spheres is geosphere, atmosphere, hydrosphere)