set 1 MCQ Questions & Answers Detailed Explanation
MOST IMPORTANT general science mcq - 1 EXERCISES
The following question based on photosynthesis topic of general science mcq
(a) Plasmolysis
(b) Photosynthesis
(c) Respiration
(d) Osmosis
The correct answers to the above question in:
Answer: (b)
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Read more biology photosynthesis Based General Science Questions and Answers
Question : 1
Photosynthesis occurs in
a) Only day
b) Day or night
c) Day and night
d) Night
Answer »Answer: (b)
Question : 2
Which one of the following gases is used by plants in photosynthesis?
a) Sulphur dioxide
b) Chlorine
c) Carbon dioxide
d) Ammonia
Answer »Answer: (c)
Question : 3
Which of the following types of light are strongly absorbed by plants?
a) Yellow and violet
b) Indigo and yellow
c) Blue and red
d) Violet and orange
Answer »Answer: (c)
Question : 4
Which one of the following does not increase the amount of carbon dioxide in carbon cycle on earth?
a) Volcanic action
b) Decay of organic matter
c) Photosynthesis
d) Respiration
Answer »Answer: (c)
Question : 5
When the bark of a tree is removed in a circular fashion all around near its base, it gradually dries up or dries because
a) Roots do not receive oxygen for respiration
b) Tree is infected by the soil microbes
c) Roots are starved of energy
d) Water from soil cannot rise to aerial parts
Answer »Answer: (c)
Question : 6
Which light is most effective in photosynthesis?
a) Violet
b) Green
c) Blue
d) Red
Answer »Answer: (d)
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