Question

Q1. Answer in brief.
(a) What is mechanical weathering ?
(b) What are the main types of chemical
weathering?
(c) How
does biological weathering
occur?
(d)Distinguish between weathering and
mass wasting.
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Answer 1

Answer:

see answer

Explanation:

Q1)

a)Mechanical (or physical) weathering is the process by which physical forces break down rock, minerals and soil into finer particles. This article treats mechanical weathering as being separate from chemical weathering, even though both types of alteration occur concurrently in nature.

b) There are different types of chemical weathering processes, such as solution, hydration, hydrolysis, carbonation, oxidation, reduction, and chelation. Some of these reactions occur more easily when the water is slightly acidic.

c) Biological weathering is weathering caused by plants and animals. Plants and animals release acid forming chemicals that cause weathering and also contribute to the breaking down of rocks and landforms. Chemical weathering is weathering caused by breaking down of rocks and landforms.

d)Weathering is the physical disintegration or chemical alteration of rocks at or near the Earth's surface. Erosion is the physical removal and transportation of weathered material by water, wind, ice, or gravity. Mass wasting is the transfer or movement of rock or soil down slope primarily by gravity.

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