Question

Explain 2 ways in which water contributes to the weathering of rocks

Answer 1

Answer:

Water plays a very important role in chemical weathering in three different ways. First, it combines with carbon dioxide in the soil to form a weak acid called carbonic acid. ... Finally, the water can break up minerals through hydrolysis . The most common group of minerals, the silicates, is decomposed by this process.

Explanation:

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Answer 2

Water is one of the most important agents of weathering of rocks.

Some ways water contributes to weathering are:

• Water present in the form of rain.
• Water in the form of river and streams.
• Frozen water when melts.

Weathering is the breakdown of rocks.

Weathering by rainwater:

• Rainwater penetrates the rocks in the course of time.

• Acid rain also contributes to weathering.
• As rainwater consists of carbon dioxide that mixes with the minerals of the rocks causing it to react that ultimately leads to weathering.

Weathering by water bodies like river:

• Water streams move fast from high altitude to low allowing it to move fast.
• When the water stream collides with the rocks it leads to weathering.

Weathering by ice:

• Ice is a solid form of water. When ice liquefy it expands and penetrates through the rocks.

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