Question

why are some of the monuments threatened by acid rain?​

Answer 1

$\boxed{ \sf{ \red{ \bigstar \: Acid \: rain}}}$

The burning of fossil fuels produce acidic gases like sulphur dioxide and nitrogen oxides. Sulphur dioxide reacts with water vapour present in the atmosphere to form sulphuric acid whereas nitrogen oxides reacts with water vapour present in the atmosphere to form nitric acid. These acid rain dissolves in rainwater and falls to the earth in the form of acid rain.

Harmful effects of acid rain:

• Acid Rain kills aquatic animals such as fish.

• Acid rain destroys forest areas.

• Acid rains corrodes the statues,surface of buildings,bricks-works and historical monuments and damages them slowly.

why are some of the monuments threatened by acid rain?

⇒ The monuments are made of limestone or marble, etc.The acids present in the acid rain react with the carbonates present in the marble and limestone of monuments and dissolve it slowly. In this way, acid rain makes the monuments to crumble away slowly.

Answer 2

Answer:

Acid rain damages buildings and structures because it dissolves the stone or corrodes the metal that is exposed to the weather. Before people became aware of the problems that acid rain caused, they often used metals, limestone and marble as building materials exposed to rain and fog.

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