Geography (2015) | Study Mode

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Question 41
A
1 : 50,000
B
1 : 75,000
C
1 : 100,000
D
1 : 450,000
Explanation.
A is correct; when the map is enlarged the new scale is 1 : 50,000
A is correct. when the map is enlarged the representative fraction becomes smaller i.e. 1: 150,000/3
= 1: 50,000

Correct Option:
A
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Question 42
A
parasite
B
predator
C
grazer
D
pressure
Explanation.
biotic factors means living factors
D is correct; pressure is not parts of the biotic factors of ecosystem

Correct Option:
D
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Question 43
A
increased silt load
B
sewage deposit
C
sand filling
D
industrial effluent
Explanation.
C is correct sand filling can never be caused by water pollution.

Correct Option:
C
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Question 44
A
Weathering deposition-erosion
B
weathering erosion deposition
C
erosion weathering deposition
D
deposition -erosion weathering
Explanation.
B is not correct; because the first stage of denudation is weathering erosion- deposition

Correct Option:
B
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Question 45
A
Gerald
B
geosphere
C
sphere
D
circle
Explanation.
A is correct; the shape of the earth is spherical, but it is better be described as geoid meaning the shape of the earth.

Correct Option:
A
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Question 46
A
bacteria
B
topography
C
water
D
wind
Explanation.
A is correct. Because it is a biotic component of the ecosystem

Correct Option:
A
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Question 47
A
grazing
B
strip-cultivation
C
bush burning
D
over-cropping
Explanation.
B is correct; it is also called crop rotation is an human activity that benefit the soil

Correct Option:
B
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Question 48
A
ocean deep
B
ocean ridge
C
deep sea plain
D
salinity of the ocean
Explanation.
D is correct. Because salinity defined as the degree of saltines or concentration of salt solution in oceans or seas. The degree of salinity varies from ocean to ocean and nit is measured in percentage or parts per thousand.

Correct Option:
D
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Question 49
A
metamorphic rock
B
plutonic rocks
C
igneous rock
D
sedimentary rocks
Explanation.
D is correct; these are rocks formed from sediments deposition either by water, by wind, or by ice. Sedimentary rocks are stratified rocks and the plane between two strata is called bedding plane.

Correct Option:
D
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Question 50
A
color
B
capillary
C
permeability
D
texture
Explanation.
B is correct; because it refers to the degree of power to retain water. It's not parts of the way of defining soil.

Correct Option:
B

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