Samacheer Kalvi 11th Geography – Unit 7: Biosphere Book Back Answers

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11th Geography – Unit 7: Biosphere Book Back Answers

I. Choose the Correct Answer:

1. Who first proposed the term ‘Ecosystem’?
a. E.O. Wilson        b. I.G. Simmon
c. A.G. Tansley   d. Raymond F Dasmann

2. What is the main source of energy for the earth?
a. Moon  b. Stars
c. Sun   d. Tides

3. What is the position of a rabbit in a food chain?
a. Primary consumer  b. secondary consumer
c. tertiary consumer          d. Quaternary consumer

4. Which organism eats both plants and animals?
a. Herbivores     b. Carnivores
c. Omnivores d. Detritivores

5. Which of the following is found in the desert biome?
a. Eucalyptus  b. Pine
c. Teak             d. Cacti

6. Which of the following are native tribes inhabiting the tropical evergreen forests of Africa?
a. Yanomani  b. Pygmies
c. Tikuna        d. Aborigines

7. The largest number of plant species are found in the biome.
a. Savannah                           b. Desert
c. Tropical rain forest  d. taiga

8. The Temperate grasslands of North America.
a. Prairies  b. Steppes
c. Pampas     d. Downs

9. The Taiga biome extends over the latitudes ________.
a. 0° to20° North and South b. 30° to 50° N
c. 50° to 65° N      d. beyond 65° N

10. Which of the following is not covered by the Nilgiri Biosphere?
a. Bandipur National Park            b. Nagarhole National Park
c. NamdaphaNational park  d. Mukurthi National park

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For Chapter 8 Natural Disasters Book Back Click Here – Chapter 8 Natural Disasters – Public Awareness For Disaster Risk Reduction Book Back Answers

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