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Biosphere Book Back Questions & Answers, Exercises, Solutions, Tests, Quizzes, Videos and Podcasts for Class 9 | Unit 5 | Geography | Social | Samacheer Kalvi – English Medium

Samacheer Kalvi Social New Book Back Questions & Answers: https://www.thelearning.app/samacheer-kalvi-english-medium/class-9/social-4/biosphere/exercises

Podcasts: https://www.thelearning.app/samacheer-kalvi-english-medium/class-9/social-4/biosphere/videos

Tests & Quizzes: https://www.thelearning.app/samacheer-kalvi-english-medium/class-9/social-4/biosphere/tests

Flash Cards: https://www.thelearning.app/samacheer-kalvi-english-medium/class-9/social-4/biosphere/flashcards

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00:00 Introduction
00:48 Choose the correct answer
05:06 Fill in the blanks
07:37 Assertion and reason
10:20 Find out the dates for the following

Questions answered in this video –

1. The coldest biome on Earth is

2. This is the smallest unit of biosphere.

3. Nutrients are recycled in the atmosphere with the help of certain micro organisms, referred to as

4. To which climatic conditions are Xerophytic plants specifically adapted to?

5. Why is the usage of rainforest biomes for large scale agriculture unsustainable?

6. An area where animals, plants and micro organisms live and interact with one another is known as _________

7. ___________ are also called Heterotrophs.

8. __________ is a system of interlocking and independent food chains.

9. _______ is an extensive large ecosystem.

10. The vegetative type commonly found in desert biomes is called __________

11. __________ is an aquatic biome that is found where fresh water and salt water mix

12. (A): A: Heterotrophs do not produce their own food… (R): R: They depend on autotrophs for their nourishment.

13. (A): A: Hotspots are the regions characterised by numerous endemic plants and animal species living in a vulnerable environment… (R): R: To manage and focus on conservation work more effectively, researchers identified hotspots.

14. (A): A: The number of gorillas in Africa has plummeted by 60% in the past twenty years. … (R): R: Non intervention of human beings in the forest areas

15. World Wild Life Day

16. International Day of Forest

17. World Water Day

18. Earth Day

19. World Environment Day June 5th

20. World Oceans Day

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