BIOLOGY (2018) | Study Mode

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Question 21
A
Putrefaction
B
Photosynthesis
C
volcanic eruption
D
Burning fuels
Explanation

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Correct option: B
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Question 22
A
Water cycles
B
Carbon cycle
C
Nitrogen cycle
D
oxygen cycle
Explanation

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Correct option: A
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Question 23
A
Availability of nutrients
B
Availability of water
C
intensity of light
D
Carbon dioxide concentration
Explanation

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Correct option: C
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Question 24
A
Pooter
B
Pitfall trap
C
Quadrat
D
Sweep net
Explanation

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Correct option: C
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Question 25
A
has limited air space
B
is light and easy to dig
C
drains slowly
D
is heavy and poorly aerated
Explanation

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Correct option: B
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Question 26
A
Dog
B
Sheep
C
Grass
D
Fungus
Explanation

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Correct option: B
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Question 27
A
sunlight
B
carbohydrates
C
green plants
D
mineral salts
Explanation

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Correct option: A
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Question 28
A
feeds on S.
B
is a primary consumer.
C
is a producer as well as a consumer
D
is a secondary consumer
Explanation

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Correct option: D
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Question 29
A
Albinism
B
Scabies
C
Haemophilia
D
Colour blindness
Explanation

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Correct option: B
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Question 30
A
sporophyte
B
gametophyte
C
zygote
D
pollen grains
Explanation

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Correct option: D

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