Question

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

○ atmosphere, cryosphere, geosphere

○ cryosphere, hydrosphere, biosphere

○ geosphere, atmosphere, hydrosphere

○ biosphere, atmosphere, cryosphere

Explanation:

1. Analyze each sphere:

• Atmosphere: Air pollution (causing acid rain) occurs in the atmosphere, so the atmosphere is involved.
• Hydrosphere: Acid rain is part of the hydrosphere (water in the form of rain).
• Geosphere: Limestone rocks are part of the geosphere, and acid rain dissolving them affects the geosphere.
• Cryosphere: Cryosphere is related to frozen water (ice, snow), which is not involved here.
• Biosphere: The problem focuses on the interaction between air pollution, rain, and rocks, not directly on living organisms (biosphere) in this process.

1. Evaluate options:

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

Answer:

C. geosphere, atmosphere, hydrosphere