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Test: Ozone Depletion (Old NCERT) - NEET MCQ


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5 Questions MCQ Test NCERT Based Tests for NEET - Test: Ozone Depletion (Old NCERT)

Test: Ozone Depletion (Old NCERT) for NEET 2024 is part of NCERT Based Tests for NEET preparation. The Test: Ozone Depletion (Old NCERT) questions and answers have been prepared according to the NEET exam syllabus.The Test: Ozone Depletion (Old NCERT) MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Ozone Depletion (Old NCERT) below.
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Test: Ozone Depletion (Old NCERT) - Question 1

Which of the following statements regarding ozone is incorrect?

Detailed Solution for Test: Ozone Depletion (Old NCERT) - Question 1

'Good ozone' is found in the upper part of the atmosphere called the stratosphere and it act as a shield absorbing ultraviolet radiations from the sun. UV rays are, highly injurious to living organisms. 'Bad ozone' is formed in the lower part of atmosphere called troposphere and it harms plants and animals.

Test: Ozone Depletion (Old NCERT) - Question 2

The major ozone depleting substance out of the following is _____________.

Detailed Solution for Test: Ozone Depletion (Old NCERT) - Question 2

Ozone-depleting substances (ODS) are substances that react with ozone present in the stratosphere and destroy the same. The major Ozone-depleting substances are chlorofluorocarbons (14% of total depletion), nitrogen oxides (3.5% depletion), sulphur dioxide, halon, carbon tetrachloride, methyl chloroform, chlorine, etc.

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Test: Ozone Depletion (Old NCERT) - Question 3

Montreal protocol is associated with ______________________.

Detailed Solution for Test: Ozone Depletion (Old NCERT) - Question 3

Recognising the deleterious affects of ozone depletion, an international treaty, known as the Montreal Protocol, was signed at Montreal (canada) in 1987 (effective in 1989) to control the emission of ozone depleting substances.

Test: Ozone Depletion (Old NCERT) - Question 4

Ozone depletion is occurring widely in

Detailed Solution for Test: Ozone Depletion (Old NCERT) - Question 4

Ozone gas is continuously formed by the action of UV rays on molecular oxygen, and also degraded into molecular oxygen in the stratosphere. There should be a balance between production and degradation of ozone in the stratosphere.

Test: Ozone Depletion (Old NCERT) - Question 5

Which of the following can cause DNA damage and mutations in humans?

Detailed Solution for Test: Ozone Depletion (Old NCERT) - Question 5

Ultraviolet radiations are of three types - UV-C (100 - 280 nm). UV-B (280 - 320nm) and UV-A (320 - 390nm). UV radiation of wavelengths shorter than UV-B, are almost completely absorbed by Earth's atmosphere, given that the ozone layer is intact. But, UV-B damages DNA and mutation may occur. It causes aging of skin, damage to skin cells and various types of skin cancers.

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