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Natural ecosystem

A biological environment occurring freely in nature rather than being created by man is called as a natural ecosystem. 

Example : Desert, forest

1. Which one of the following is a natural ecosystem

a. Pond

b. Forest

c. Lake

d. All of these

2. The _________ ecosystem can be seen existing in the artics as well as the tropics.

a. desert

b. marine

c. grassland

d. forest

3. The _______ ecosystem refers to the aquatic ecosystem containing saltwater and harbours a range of species

a. desert

b. marine

c. grassland

d. forest

4. The _______ ecosystem are found in steppes, savannas, and prairies, in the tropical and temperate regions

a. desert

b. marine

c. grassland

d. forest

5. The _______ ecosystem is classified on the basis of the climate which can either be tropical, temperate or boreal.

a. desert

b. marine

c. grassland

d. forest

1 Answer

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by (30.6k points)
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Best answer

1. d. All of these

2. a. desert

3. b. marine

4. c. grassland

5. d. forest

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