Question

Sun, water, wind and living organisms are main factors that influence the formation of soil from the rocks.
A. True
B. False

Answer 1

Hint: Sun, water and living organisms are together called as- abiotic and biotic components. Particles present in air and on earth are discovered during panspermia theory which proves the sustainability of life on earth. And the living organisms have evolved from these micro-particles. So, sun, water, wind and living organisms are main factors that influence the formation of soil from the rocks.

Complete answer:
As we know that, the top surface layer of this exposed solid part of crust which contains all the minerals and humus are capable of supporting plant growth is called soil. The process of soil formation is slow and it can take ages to make ample soil. The soil is regarded as a non-renewable resource. The process of soil from earth’s crust is called pedogenesis. Pedogenesis involves two steps- weathering and decomposition of organic matter and mineralization.
Weathering is the process of breaking down rocks into small tiny particles. It may occur due to physical, chemical or biological means. In this step the physical weathering includes- all the mentioned components and biological include- living organisms.
So, physical weathering involves pulverisation of rocky matter caused by the climatic changes such as- sun, wind and water. Under the influence of solar radiations, the rock heats up and it expands and later constricts at night. This process undergoes every day and since all parts of rock cannot expand and constrict at the same rate they break into small pieces, forming soil.
Option A True- so, the five components are required for the formation of soil. As here it is mentioned only three components that are sun, water and wind physical factors and the biological means is the living organism.
Option A is not correct.
Option B False- soil formation requires physical and biological means which are summed up into five major components that is- sun, water, wind, topography, time and also living organisms.
Option B is correct.

Hence, Option A is the correct answer.

Note:
Soil formation as we learnt is a time-taking process. The strong winds influence the formation of soil by eroding them. They also carry sand from one place to another place. Water helps in flowing away the soil to one place to another and also it wears away the rocks over a long period of time. The flow of water along the rocks creates a friction between water and rocks. This leads to soil formation.