Chemical weathering is a name given to

A Disintegration of rocks without any change in their chemical composition
B Chemical interaction of oxygen, carbon dioxide or water with the minerals in the rocks
C Removal of soil by chemical action
D Artificial breaking up of rocks for man's use

Correct Answer: Chemical interaction of oxygen, carbon dioxide or water with the minerals in the rocks

Chemical weathering is a name given to Chemical interaction of oxygen, carbon dioxide or water with the minerals in the rocks. Chemical weathering changes the molecular structure of rocks and soil. For instance, carbon dioxide from the air or soil sometimes combines with water in a process called carbonation. This produces a weak acid, called carbonic acid, that can dissolve rock.
Bissoy MCQ
#Geography #World Agriculture #Minerals And Industries

Related Questions

Which one of the following processes of weathering belongs to both mechanical and chemical weathering?
A Crystallization
B Exfoliation
C Hydration
D Carbonation
Which of the following is not a type of chemical weathering?
A Corrosion
B Solution
C Oxidation
D Carbonation
Chemical weathering includes ________
A Oxidation, reduction and exfoliation
B Carbonation, oxidation and exfoliation
C Exfoliation, solution and reduction
D Solution, oxidation and reduction
Which of the following is a chemical weathering process ?
A Frost Action
B Hydraulic Action
C Oxidation
D Thermal Expansion
The most ideal conditions for the chemical weathering are found in ________
A Cold and dry regions
B Cold and humid regions
C Hot and dry regions
D Hot and humid regions
Which of the following represents the process of chemical weathering?
A Thermal expansion and contraction
B Mass exfoliation
C Hydration and Hydrolysis
D Frost action and crystal growth
A special lottery is to be held to select the student who will live in the only deluxe room in a dormitory . There are 100 seniors, 150 juniors and 200 sophomres who applied. Each senior's junior's name , 2 times; and each sophomres who applied. Each senior's name is placed in the lottery 3 times; each junior's name ,2 times name, 2 times ; and each sphomore's name , 1 time . What is the probability that a senior's name will be chosen?
A 18
B 38
C 48 
D 28
Chemical potential (an intensive property) of a substance is a force that drives the chemical system to equilibrium and is equal to its partial molar properties. The reatio of chemical potential to free energy of a pure substance at oconstant temperature and pressure is
A 0
B 1
C ∞
D None of these
________ influences the rate of weathering and humus in soil formation.
A Flora & Fauna
B Time
C Parent rock
D Climate
Weathering of coal during storage causes
A Reduction in coal size
B Increase in its friability
C Decrease in its caking capacity
D All of the above

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