Identify the odd one out?

1. Forest

2. Grassland

3. Desert

4. Wetland

Subtopic:  Components & Types of Ecosystems |
 70%
From NCERT
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Which of the following is not a man-made ecosystem?

1. Pond

2. Crop-field

3. Swimming pool

4. Both ‘1’ and ‘3’

Subtopic:  Components & Types of Ecosystems |
 74%
From NCERT
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Which vertical strata is occupied by trees in a forest?

1. Top

2. Middle

3. Bottom

4. Any of the above.

Subtopic:  Introduction | Components & Types of Ecosystems |
 78%
From NCERT
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Which of the following could affect the rate of function of a pond?

1. The solar input

2. The cycle of temperature

3. Day-length

4. All of the above

Subtopic:  Components & Types of Ecosystems |
 94%
From NCERT
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The basic requirement for any ecosystem to function and sustain is

1. Enormous amount of water

2. Constant input of solar energy

3. Fertile soil

4. Oxygen

Subtopic:  Ecosystem Productivity |
 87%
From NCERT
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The amount of biomass or organic matter produced per unit area over a time period by plants during photosynthesis is called as-

1. Biomass production

2. Primary production

3. Secondary production

4. Assimilation

Subtopic:  Ecosystem Productivity |
 85%
From NCERT
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Primary production is expressed in terms of-

1. Grams

2. Grams/year

3. Gram/m2

4. Gram/m2/year

Subtopic:  Ecosystem Productivity |
 64%
From NCERT
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What do you mean by Productivity?
1. Rate of biomass production
2. Amount of biomass production
3. Biomass produced in an area
4. Biomass produced in a time period

Subtopic:  Ecosystem Productivity |
 74%
From NCERT
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Secondary productivity is defined with respect to-

1. Producers

2. Consumers

3. Ratio of producers and consumers

4. Trophic level

Subtopic:  Ecosystem Productivity |
 91%
From NCERT
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Primary productivity of an terrestrial ecosystem depends upon

1. Photosynthetic capacity of plants.

2. A variety of environmental factors,

3. Availability of nutrients

4. All of the above.

Subtopic:  Ecosystem Productivity |
 95%
From NCERT
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