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Helga [31]
3 years ago
15

Limestone formations in caves are considered what kind of weathering

Biology
1 answer:
madreJ [45]3 years ago
7 0

Answer:

Chemical weathering

Explanation:

Caves are formed by the dissolution of limestone. Rainwater picks up carbon dioxide from the air and as it percolates through the soil, which turns into a weak acid. This slowly dissolves out the limestone along the joints, bedding planes and fractures, some of which become enlarged enough to form caves.

Chemical weathering involves the decomposition of rocks due to chemical reactions between minerals such as calcite with water and gases in the atmosphere (e.g. carbon dioxide and sulphur dioxide). The solution of soluble minerals is particularly important in limestone landscapes.

Solutional caves or karst caves are the most frequently occurring caves. Such caves form in rock that is soluble; most occur in limestone, but they can also form in other rocks including chalk, dolomite, marble, salt, and gypsum.

Essentially, water reacts with carbon-dioxide to form carbonic acid. It then seeps slowly through the roof of the cave, depositing calcium carbonate, which hardens and builds up over time to form a stalactite.

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2 years ago
In 3-5 sentences, construct an argument for why more cities should incorporate green roofs. (4 points)
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Green roof do have several advantages over ordinary roofs as follows.

<h3><u>Explanation:</u></h3>

Green roof are defined as the roof over which a thin layer of soil is placed to grow a thin layer of grass or other plants. This have several advantages as follows:

A. Green roof help in reducing water logging in roofs, thereby reducing the dampening of the concrete, and increasing the longevity of the roof.

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3 years ago
Reactive hyperemia is an example of .......... control of local blood flow .
leva [86]

Answer:

<h3>metabolic short term</h3>

Explanation:

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The polar bear is one of the largest carnivores. It hunts mainly seal on the Arctic ice. What could be a factor that adversely a
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Explanation:

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