Question

Which of the following is an environmental indicator of acid deposition?

Decreased eutrophication of aquatic ecosystems
Increased photosynthesis from the breakdown of leaves
Decreased pH levels in lakes, rivers, or other bodies of water
Decreased concentrations of toxic metals, such as aluminum in soil

Answer 1

Answer:

Explanation:

Acid rain is caused largely by sulphur dioxide and oxides of nitrogen emitted by industrial activities such as coal burning. The pH value of regular rainwater is around 5.7, givingDecreased pH levels in lakes, rivers, or other bodies of water it an acidic nature.

Answer 2

Answer:

Explanation:

Acid deposition:

A mixture of wet and dry deposition (deposited material) from the atmosphere that contains higher than usual concentrations of nitric and sulfuric acids is referred to as "acid rain" in its broadest sense. Both natural causes, such as volcanoes and decomposing vegetation, and artificial sources, principally emissions of sulfur dioxide $(SO2)$ and nitrogen oxides $(NOx)$ from the combustion of fossil fuels, contribute to the development of the precursors, or chemical forerunners, of acid rain.

Acid rain is created when nitrogen oxide and sulfur dioxide released by industry and automobiles interact with atmospheric moisture. Acid rain, which frequently occurs far from the source of the pollution, dissolves the stone in structures and monuments, destroys trees, and renders lakes unsafe for fish. Rocky terrain with scant topsoil is especially prone to acid rain can cause damage.

Decreased pH levels in lakes, rivers, or other bodies of water is an environmental indicator of acid deposition.

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