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TN 12th Computer Applications மின்னணு தரவு பரிமாற்றம் Sample Question Papers Study Material - QB365 Set A

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TN 12th Computer Applications மின் - வணிக பாதுகாப்பு அமைப்புகள் Sample Question Papers Study Material - QB365 Set A

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12th Standard

TN 12th Computer Applications மின்னணு செலுத்தல் முறைகள் Sample Question Papers Study Material - QB365 Set A

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12th Standard

TN 12th Computer Applications மின் - வணிகம் Sample Question Papers Study Material - QB365 Set A

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12th Standard

TN 12th Computer Applications திறந்த மூல கருத்துருக்கள் Sample Question Papers Study Material - QB365 Set A

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12th Standard

TN 12th Computer Applications வலையமைப்பு வடமிடல் Sample Question Papers Study Material - QB365 Set A

12th Standard English Medium Biology (Botany) Subject Environmental Issues Creative 2 Mark Questions with Solution Part - II

Published on: 22/06/2021

QB365 provides detailed and simple solution for every Creative Questions in class 12 Biology Subject. It will helps to get more idea about question pattern in every Creative questions with solution.

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Std: 12th Standard - Biology

chapter: - Creative Questions

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Questions:

Generic 2

5 x 2 = 10

Explain the term Carbon sink.

What is carbon sequestration?

What do you mean by good ozone and bad ozone?

List out the anthropogenic sources of Nitrous oxide.

Define global warming.

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Answers Key:

Generic 2

5 x 2 = 10

Any system having the capacity to accumulate more atmospheric carbon during a given time interval than releasing CO₂, Example: forest, soil, ocean are natural sinks. Landfills are artificial sinks.

Carbon sequestration is the process of capturing and storing CO₂ which reduces the amount of CO₂ in the atmosphere with a goal of reducing global climate change.

(i) The ozone layer of troposphere is called bad ozone.
(ii) The ozone layer of stratosphere is called good ozone.

Man-made sources include nylon and nitric acid production, use of fertilizers in agriculture, manures cars with catalytic converter and burning of organic matter.

The increase in mean global temperature due to increased concentration of greenhouse gases