The soil particles, particularly clay and organic matter in soil contain negative charges that attract positively charged ions such as
Options
(a) K⁺⁺ (b) Mg⁺ (c) Ca⁺⁺ (d) all of these
Correct Answer: […]
The sun loving plants are referred as
Options
(a) halophytes (b) heterotrophs (c) sciophytes (d) heliophytes
Correct Answer:
heliophytes
Explanation:
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The term ecosystem was first coined by
Options
(a) Odum (b) Reither (c) Tansley (d) both (a) & (b)
Correct Answer:
Tansley
Explanation:
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Vegetation of tundra consists of
Options
(a) mosses (b) sedges (c) grasses (d) all of these
Correct Answer:
all of these
Explanation:
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What percentage of energy is transferred from one trophic level to another?
Options
(a) 10% (b) 1% (c) 0.10% (d) 0.01%
Correct Answer:
10%
Explanation:
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Which atom is limiting the primary productivity mostly?
Options
(a) C (b) P (c) D (d) N
Correct Answer:
C
Explanation:
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Which most often limits the primary productivity of the ecosystem?
Options
(a) solar radiation/light (b) oxygen (c) consumers (d) nitrogen
Correct Answer:
solar radiation/light
Explanation:
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Which of the following exist in maximum number in terms of genera and species?
Options
(a) herbivore mammals (b) carnivore mammals (c) aquatic mammals (d) terrestrial mammals
Correct Answer:
terrestrial mammals
Explanation:
No […]
Which of the following is the most sparsely populated state of India?
Options
(a) Manipur (b) Rajasthan (c) Meghalaya (d) Arunachal Pradesh
Correct Answer:
Arunachal Pradesh
Explanation:
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Which of the following is the most stable ecosystem?
Options
(a) ocean (b) forest (c) desert (d) mountain
Correct Answer:
ocean
Explanation:
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