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

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

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12th Standard English Medium Biology (Zoology) Subject Environmental Issues Creative 2 Mark Questions with Solution Part - I updated Creative Questions

Published on: 13/05/2022

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latest Creative Questions

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Std: 12th Standard - Biology

chapter: - Creative Questions

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Questions:

Generic 2

5 x 2 = 10

What is ozone depletion? How is it caused?

Complete the following:
(a) Smoke +_____ = Smog

What is meant by accelerated eutrophication?

What are agrochemicals?

Define air pollution.

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Answers Key:

Generic 2

5 x 2 = 10

Thinning of the stratospheric Ozone layer is known as ozone depletion. Such depletion causes the 'ozone hole', resulting in poor screening of the harmful UV rays and increase in incidences of skin cancer.
Cause :Ozone depletion is caused by CFC - Carbon Fluro Carbons.

Fog

Pollutants from anthropogenic activities like effluents from the industries and homes can radically accelerate the aging process. This phenomenon is known as Cultural or Accelerated Eutrophication

Chemicals which are used in agriculture for growth of plants and pest control are called agrochemicals or agrichemicals

The alteration or changes in the composition of the earth's atmosphere by natural or human activities (anthropogenic factors) are referred as air pollution.