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Chapters
1.02: Ancient Civilisations
1.03: Early Tamil Society and Culture
1.04: Intellectual Awakening and Socio-Political Changes
1.05: The Classical World
1.06: The Middle Ages
1.07: State and Society in Medieval India
1.08: The Beginning of the Modern Age
1.09: The Age of Revolutions
1.1: Industrial Revolution
1.11: Colonialism in Asia and Africa
2.01: Lithosphere – 1 Endogenetic Processes
2.02: Lithosphere – 2 Exogenetic Processes
2.03: Atmosphere
2.04: Hydrosphere
▶ 2.05: Biosphere
2.06: Man and Environment
2.07: Mapping Skills
2.08: Disaster Management: Responding to Disasters
3.01: Forms of Government and Democracy
3.02: Election, Political Parties and Pressure Groups
3.03: Human Rights
3.04: Forms of Government
3.05: Local Self Government
3.06: Road Safety
4.01: Understanding Development: Perspectives, Measurement and Sustainability
4.02: Employment in India and Tamil Nadu
4.03: Money and Credit
4.04: Agriculture in Tamil Nadu
4.05: Migration
![Samacheer Kalvi solutions for Social Science [English] Class 9 TN Board chapter 2.05 - Biosphere - Shaalaa.com](/images/social-science-english-class-9-tn-board_6:5f2b1b2038084cf381bfa42c826a928c.jpg "Samacheer Kalvi solutions for Social Science [English] Class 9 TN Board chapter 2.05 - Biosphere")
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Solutions for Chapter 2.05: Biosphere
Below listed, you can find solutions for Chapter 2.05 of Tamil Nadu Board of Secondary Education Samacheer Kalvi for Social Science [English] Class 9 TN Board.
Samacheer Kalvi solutions for Social Science [English] Class 9 TN Board 2.05 Biosphere Exercises [Pages 207 - 208]
Choose the correct answer
The coldest biome on Earth is.
Tundra
Taiga
Desert
Oceans
This is the smallest unit of biosphere.
Ecosystems
Biome
Environment
None of the above
Nutrients are recycled in the atmosphere with the help of certain micro organisms, referred to as.
Producers
Decomposers
Consumers
None of the above
To which climatic conditions are Xerophytic plants specifically adapted to?
Saline and sandy
Limited moisture availability
Cold temperature
Humid
Why is the usage of rainforest biomes for large scale agriculture unsustainable?
because it is too wet
because the temperature is too warm
because the soil is too thin
because the soil is poor
Assertion type questions.
A: Heterotrophs do not produce their own food.
R: They depend on autotrophs for their nourishment.
Both assertion (A) and Reason(R) are true; R explains A
Both assertion(A) and reason(R) are true; R does not explain A
A is true; R is false
Both A and R are false
A: Hotspots are the regions characterized by numerous endemic plants and animal species living in a vulnerable environment.
R: To manage and focus on conservation work more effectively, researchers identified hotspots.
Both assertion (A) and Reason(R) are true; R explains A
Both assertion(A) and reason(R) are true; R does not explain A
A is true; R is false
Both A and R are false
Fill In The Blanks
An area where animals, plants and micro organisms live and interact with one another is known as _________.
___________ are also called Heterotrophs.
__________ is a system of interlocking and independent food chains.
_______ is an extensive large ecosystem.
The vegetative type commonly found in desert biomes is called __________.
__________ is an aquatic biome that is found where fresh water and salt water mix.
Answer the following in brief
What is Biosphere?
What is an ecosystem?
What does the term ‘biodiversity’ mean?
What is meant by loss of biodiversity?
Mention the various terrestrial biomes.
Give reasons for the following
Producers are also called autotrophs.
Biosphere provides a stable ecosystem.
Distinguish between Producers and Decomposers.
Distinguish between terrestrial biomes and Aquatic biomes.
Distinguish between Tropical vegetation and Desert vegetation.
Distinguish between Savannas and Tundra.
Answer the following in a paragraph
Explain the various components of ecosystem.
Write a paragraph on the functions of an ecosystem.
Explain about the aquatic biomes on Earth.
Find out the date for the following
World Wild Life Day -
Find out the date for the following
International Day of Forest -
Find out the date for the following
World Water Day -
Find out the date for the following
Earth Day -
Find out the date for the following
World Environment Day -
Find out the date for the following
World Oceans Day -
Map Study
Locate the following on the world outline map.
- Prairies
- Downs
- Tundra Biomes
- Equatorial Biomes.
Picture Study
Narrate the given food web of Arctic Tundra in your own words.
- Arctic Tundra Food Wed
Solutions for 2.05: Biosphere
Samacheer Kalvi solutions for Social Science [English] Class 9 TN Board chapter 2.05 - Biosphere
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Concepts covered in Social Science [English] Class 9 TN Board chapter 2.05 Biosphere are Introduction of Biosphere, Biodiversity, Ecosystem, Biomes.
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