Question

(c)
Give a geographical reason for each of the following:
(i) Physical weathering is also called mechanical weathering.
(ii) Physical weathering is more rapid in desert climates.
(iii) Chemical weathering occurs in moist and cold climates.​

Answer 1

Answer:

Explanation:

(i) Physical weathering is also called mechanical weathering because the physical weathering takes place due to the mechanical forces of nature. The major environmental forces that take part in mechanical weathering are wind, running water, rain and change in temperature. Physical weathering disintegrates large rocks into smaller dust particles by physical force. It does not change the chemical nature of the rocks.

(ii) Physical weathering is more rapid in desert climates because of the large diurnal temperature range in the desert region. During the day the rocks expand due to high temperature and at night the rocks contract due to low temperature, this causes great pressure in rocks which causes weathering. Due to lack of vegetation, wind flow with greater force in the desert which facilitates physical weathering.

(iii) Chemical weathering occurs in moist and cold climate because the rainwater reacts with carbon dioxide in the soil to form a weak acid which increases the rate of chemical weathering. As most natural chemical processes take place at low temperatures, cold climates increase the chemical processes that take part in chemical weathering.

Answer 2

Give a geographical reason for each of the Physical weathering and Chemical weathering

Explanation:

• The term physical weathering is also called as the mechanical weathering and is used refers to the geologic process that breaks the rocks apart without changing their chemicals a comparison and is associated with a natural zones of the weakness and activity of the organism such as the roots and alternative heating and cool which is common in deserts and the crystallization of the minerals.

• The physical weathering is more rapid phenomena the desert landscape as the type of the terrain and the tool of the erosion are already present in a larger amount and the thermal stress can occur during the hot days and the cold nights. The pressurized the outer layers of the rocks results in an onion peeling structure of weathering.

• The chemical weathering occur in most of the moist and the humid areas as the massive about of the rocks have to be a fracture that becomes susceptible for the process of the weathering and thereby with the alternation in the chemical composition of rocks the rock can undergo oxidation and hydration as water is the agent of transformation.

Know more but the geographic reasons for the physical and chemical weathering.

• https://brainly.in/question/12006656 answers by Smarthelper.