Ozone

(1) Ozone hole is the area above Antarctica

(2) Ozone layer is the thinnest above Antartica

(3) Ozone thickness is measured in Dobson unit

(4) All of these

Subtopic:  Ozone Layer Depletion |
 94%
From NCERT
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Bad Ozone

(1) Formed in lower atmosphere

(2) Formed in Troposphere

(3) Harms plants and animals but is not lethal

(4) All of these

Subtopic:  Ozone Layer Depletion |
 85%
From NCERT
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Good ozone is

(1) Found in the upper strata of the atmosphere

(2) Found in Stratosphere

(3) Acts as a shield to UV light

(4) All of these

Subtopic:  Ozone Layer Depletion |
 94%
From NCERT
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The thickness of ozone is measured in

(1) Dobson units

(2) Decibel

(3) Centi Morgan

(4) Centi meter

Subtopic:  Ozone Layer Depletion |
 97%
From NCERT
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UV rays are highly injurious to living organisms

(1) Because DNA and Protein preferentially refract UV light

(2) Because DNA and Protein preferentially radiate UV light in the form of heat energy

(3) Because DNA and Protein preferentially absorb UV light and as a result chemical bonds are broken

(4) Both B and C

Subtopic:  Ozone Layer Depletion |
 72%
From NCERT
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In stratosphere

Find the wrong one out

(1) Ozone is formed by the action of UV rays on molecular Oxygen

(2) Ozone is degraded there

(3) There is a balance between formation and degradation of ozone

(4) There will be accumulation of Chlorofluorocarbons or CFCs which are acted upon by UV rays and protects the ozone layer.

Subtopic:  Ozone Layer Depletion |
 73%
From NCERT
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CFCs

Find the wrong one out.

(1) Release Cl atoms in stratosphere

(2) Used as refrigerant

(3) Cl of CFCs degrade ozone releasing molecular oxygen

(4) Cl atoms released out of CFCs are also used up during degradation of Ozone

Subtopic:  Ozone Layer Depletion |
 69%
From NCERT
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Over Antarctica region, the ozone hole is

(1) Due to no formation of Ozone

(2) Due to high formation and low degradation of ozone

(3) Due to low formation and high degradation of ozone

(4) Due to no degradation of ozone

Subtopic:  Ozone Layer Depletion |
 86%
From NCERT
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UV-B

(1) Damages DNA and causes mutation

(2) Ageing of skin and damage to the skin cells and cause various types of skin cancer

(3) Inflammation of cornea, cataract

(4) All of these

Subtopic:  Ozone Layer Depletion |
 95%
From NCERT
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Snow Blindness and cataract is caused by

(1) UV-A

(2) UV-B

(3) UV-C

(4) All of these

Subtopic:  Ozone Layer Depletion |
 92%
From NCERT
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