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Geomorphic Processes Class 11 MCQs Questions with Answers
I. Choose the correct answer
Question 1.
The branch of science which deals with the study of soil is
(a) Geology
(b) Pedology
(c) Zoology
(d) none of them
Answer
Answer: (b) Pedology
Question 2.
Enrichment of water with nutrients, primarily phosphorus, causing abundant aquatic plant growth is known as
(a) Humification
(b) Diastrophism
(c) Eutrophication
(d) none of these
Answer
Answer: (c) Eutrophication.
Question 3.
Vertical section of the soil through all its horizons and extending into the parent material is called
(a) Soil profile
(b) Rock profile
(c) Mantle
(d) Crustle
Answer
Answer: (a) Soil profile.
Question 4.
The mineral which makes the saline soil useful for crops
(a) calcium
(b) potassium
(c) gypsum
(d) silica
Answer
Answer: (c) gypsum.
Question 5.
Which soil layer is approximately parallel to the soil surface
(a) Soil horizon
(b) Mantle
(c) both of them
(d) none of them
Answer
Answer: (a) Soil horizon.
Question 6.
Name the process by which clay or other fine particles go down the soil profile
(a) Eluviation
(b) illuviation
(c) Leaching
(d) Salinisation
Answer
Answer: (a) Eluviation.
Question 7.
Name the process by which the material is washed down in . the lower horizon of the soil profile :
(a) Eluviation
(b) Illuviation
(c) Leaching
(d) none of these
Answer
Answer: (b) Illuviation.
Question 8.
What process causes the removal and downward movement of material from horizon in solution?
(a) Leaching
(b) Illuviation
(c) Eluviation
(d) none of these
Answer
Answer: (a) Leaching.
Question 9.
The earth has moved and moves
(a) Horizontally
(b) Vertically
(c) both of them
(d) none of them
Answer
Answer: (c) both of them.
Question 10.
The earth’s surface receives energy from
(a) sun
(b) moon
(c) stars
(d) interior gases
Answer
Answer: (a) sun.
Question 11.
Which forces results in the wearing down/degradation of relief?
(a) Endogenetic forces
(b) Exogenetic forces
(c) both of them
(d) none of them
Answer
Answer: (b) Exogenetic forces.
Question 12.
Name the forces which build up parts of the earth’s surface
(a) Endogenetic forces
(b) Exogenetic forces
(c) Gravitation force
(d) none of these
Answer
Answer: (a) Endogenetic forces.
Question 13.
Which force helps in the geomorphic processes?
(a) Endogenetic force
(b) Exogenetic force
(c) both of them
(d) none of them
Answer
Answer: (c) both of them.
Question 14.
Which is the exogenetic element?
(a) water
(b) ice
(c) wind
(d) all of them
Answer
Answer: (d) all of them.
Question 15.
Which one is known as mobile medium?
(a) running water
(b) moving ice
(c) wind
(d) all of these
Answer
Answer: (d) all of these.
Question 16.
Name the force which causes stress on the earth materials?
(a) Endogenetic force
(b) Gravity force
(c) Exogenetic force
(d) none of these
Answer
Answer: (b) Gravity force.
Question 17.
Which one is known as geomorphic agent?
(a) ground water
(b) glaciers
(c) waves
(d) all of them
Answer
Answer: (d) all of them
Question 18.
The movement of molten rock toward the earth’s surface is known as:
(a) Diastrophism
(b) Geomorphism
(c) Volcanism
(d) none of these
Answer
Answer: (a) Volcanism
Question 19.
Denudation is:
(a) weathering
(b) mass wasting
(c) erosion
(d) all of them
Answer
Answer: (d) all of them
Question 20.
Weathering is an process
(a) Exogenetic
(b) Endogenetic
(c) Volcanism
(d) none of these
Answer
Answer: (a) Exogenetic
Question 21.
In which process chemical addition of water takes place?
(a) Solution
(b) Hydration
(c) Oxidation
(d) Carbonation
Answer
Answer: (b) Hydration
Question 22.
Exfoliation can occur due to
(a) Expansion
(b) contraction
(c) none of these
(d) both of these
Answer
Answer: (d) both of these
Question 23.
By which force is the mass movement aided?
(a) gravity
(A) running water
(c) wind
(d) waves
Answer
Answer: (a) gravity
Question 24.
How many groups are there for mass movements?
(a) three
(A) four
(c) six
(d) two
Answer
Answer: (a) three
Question 25.
In our country, where the debris avalanche and landslides occur frequently?
(a) Northern plains
(A) Western Ghats
(c) Deccan Plateau
(d) Himalayas
Answer
Answer: (d) Himalayas
II. Fill up the blanks with suitable words
Question 1.
The external forces are known as …………….. and the internal forces are known as ………….. forces.
Answer
Answer: exogenetic, endogenetic
Question 2.
…………., …………, …………. are exogenetic demerits.
Answer
Answer: Water, ice, wind
Question 3.
………….. is a directional force causing stresses on the earth materials.
Answer
Answer: Gravity
Question 4.
…………… is a mountain building process whereas …………… is a continental building process.
Answer
Answer: Orogeny, epeirogeny
Question 5.
Denudation means to ……………
Answer
Answer: strip off
Question 6.
Weathering is an important …………….. process.
Answer
Answer: exogenetic
Question 7.
…………….. is the reaction of carbonates and bicarbonates with minerals.
Answer
Answer: Carbonation
Question 8.
Red colour of iron on oxidation turns to ……………. or …………….
Answer
Answer: brown, yellow
Question 9.
Salts in rocks expand due to ……………., …………….. and …………….
Answer
Answer: hydration, thermal action, crystallisation
Question 10.
…………….. are aided by gravity and not by geomorphic agents.
Answer
Answer: Mass movements
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