WBBSE For Class 9 Geography And Environment Chapter 5 Weathering MCQS

Chapter 5 Weathering Multiple Choice Questions With Answers

Question 1.______weathering is mostly found in hot desert areas.
(1) Mechanical
(2) Chemical
(3) Organic
(4) Inorganic

Answer: (1) Mechanical.

Question 2.______ is prevalent in hot desert region.
(1) Oxidation
(2) Granular disintegration
(3) Frost shattering
(4) Carbonation

Answer: (2) Granular disintegration

Question 3. Oxidation takes place with____.
(1) Oxygen
(2) Carbon-dioxide
(3) Hydrogen
(4) Helium

Answer: (1) Oxygen.

Question 4. Physical weathering is also known as _______.
(1) Mechanical
(2) Chemical weathering
(3) Organic weathering
(4) Inorganic weathering

Answer: (1) Mechanical.

Question 5. One of the most important aggradational processes is :
(1) Diastrophism
(2) Erosion
(3) Deposition
(4) Volcanism

Answer: (3) Deposition

Question 6. The disintegration and decomposition of rocks in situ is called :
(1) Erosion
(2) Weathering
(3) Denudation
(4) Mass wasting

Answer: (2) Weathering

Question 7. The type of weathering predominant in desert region is :
(1) Chemical weathering
(2) Block disintegration
(3) Exfoliation
(4) Frost weathering

Answer: (2) Block disintegration

Question 8.The type of weathering that affects heterogeneous rocks is :
(1) Chemical weathering
(2) Granular disintegration
(3) Exfoliation
(4) Biological weathering

Answer: (2) Granular disintegration

Question 9. Iron and rocks containing iron show yellowish rust due to :
(1) Hydration
(2) Carbonation
(3) Oxidation
(4) Hydrolysis

Answer: (3) Oxidation

Question 10. Biological weathering is caused by:
(1) Wind
(2) Plants and animals
(3) River
(4) Glacier

Answer: (2) Plants and animals

Question 11. Which one of the following is an example of physical weathering?
(1) Solution
(2) Frost action
(3) Carbonation
(4) Oxidation

Answer: (2) Frost action

Question 12. Which one of the following is an example of chemical weathering—
(1) Block disintegration
(2) Exfoliation
(3) Oxidation
(4) Frost action

Answer: (3) Oxidation

Question 13. The most important factor of soil formation is—
(1) Weathering
(2) Tectonic movement
(3) Folding
(4) Faulting

Answer: (1) Weathering folding

Question 14. Granular disintegration is caused by—
(1) Release of pressure on rock beds
(2) Thermal change
(3) Crystal growth
(4) None of these

Answer: (2) Thermal change

Question 15. The principle natural agent of mechanical is—
(1) Sun
(2) Rain
(3) Wind
(4) Air Pressure

Answer: (1) Sun

Question 16. The type of weathering which is predominant in the hot desert is—
(1) Biological weathering
(2) Chemical weathering
(3) Mechanical weathering
(4) Organic weathering

Answer: (3) Mechanical weathering

Question 17. Limestones deposit which grow upward from the floor of the cave are called—
(1) Stalactites
(2) Stalagmites
{3) Column
(4) Row

Answer: (2) Stalagmites

Question 18. Which of the following process is not associated with the physical weathering by the sun rays?
(1) Block disintegration
(2) Exfoliation
(3) Carbonation
(4) Granular disintegration

Answer: (3) Carbonation

 

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