When a rock is exposed at the surface of the Earth chemical and mechanical weath

Question

When a rock is exposed at the surface of the Earth chemical and mechanical weathering processes may act upon it. a) Explain why the rates of the chemical weathering processes that may act upon the rock may be enhanced in warmer, wetter environments, compared to cooler, drier climates? b) In contrast, explain why some mechanical weathering processes may actually be enhanced in colder environments, particularly those where temperatures may regularly drop below 0 degree C? c) Explain why both chemical and mechanical weathering rates are increased when acting upon a rock that is heavily jointed and fractures compared to a rock that is massive in texture?

Explanation / Answer

Question-5 (a):

Introduction

Factors that affect Chemical Weathering

Factor-1: Properties of parent rock

Factor-2: Climate

Factor-3: Soil

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