BIOCHEMISTRY
PROPERTIES OF WATER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Marble and limestone are harder materials.
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Marble and limestone are affected more by acid rain.
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Marble and limestone are crumbly rocks.
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Marble and limestone are worm away by wind more than other rocks.
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Detailed explanation-1: -When sulfurous, sulfuric, and nitric acids in polluted air and rain react with the calcite in marble and limestone, the calcite dissolves. In exposed areas of buildings and statues, we see roughened surfaces, removal of material, and loss of carved details.
Detailed explanation-2: -Effects of Acid Rain on Materials The acidic particles corrode metal and cause paint and stone to deteriorate more quickly. They also dirty the surfaces of buildings and other structures such as monuments.
Detailed explanation-3: -Marble is usually composed of calcite, which is a carbonate mineral. Silicates do not react with acids, and therefore, acid rain does not affect most granite. However, if the granite has some carbonate minerals, those minerals will be affected.
Detailed explanation-4: -Sulfur dioxide, an acid rain precursor, can react directly with limestone in the presence of water to form gypsum, which eventually flakes off or is dissolved by water. In addition, acid rain can dissolve limestone and marble through direct contact.