Mcq On Ozone Layer Depletion

Manufactured chemicals, such as halocarbon solvents, refrigerants, foam-blowing agents, and propellants, are known as ozone-depleting substances (ODS) and are thought to be the primary cause of ozone layer depletion. After being pushed away from the surface due to turbulent mixing, these ODS molecules are transported to the stratosphere layer, faster than they can settle.

1. The ozone layer in the stratosphere is considered to be good ozone.

Stratosphere

(b) Ionosphere

(c) Troposphere

Mesosphere

I need to finish my math homework.

Answer: (a) I need to complete my math homework.

2. Ozone layer depletion is not the consequence of this

Malignant Melanoma - Skin Cancer Type

(b) Increased Ultraviolet Radiations

(c) Tides

Cyanobacteria are sensitive to UV rays and would be affected by its increase.

Which of the following is a valid statement?

  • a. The sky is blue
  • b. The sky is green
  • c. The sky is sometimes blue

Answer: (c)

The CFCs causing a rise of 3℃ in global temperature over the past century are primarily those used in refrigerators.

(a) Ammonia

(b) Freon

(c) Methane

(d) Carbon Dioxide

Which of the following is correct?

  • (a) 2 + 5 = 6
  • (b) 2 + 5 = 7

Answer: (b)

The main cause of ozone holes and its depletion is the release of chlorofluorocarbons (CFCs) into the atmosphere.

(a) Propellants

(b) Foam-Blowing Agents

(c) Halocarbon Refrigerants

  • (d) All of these

Which of the following is correct?

  • a) 4 + 5 = 11
  • b) 4 + 5 = 10
  • c) 4 + 6 = 11
  • d) 4 + 6 = 10

Answer: (d)

5. The following free radical(s) can destroy Ozone:

(a) Chlorine Radical (Cl)

(b) Hydroxyl Radicals (OH)

(c) Nitric Oxide Radical (NO)

  • (d) All of these

Which of the following is the correct answer?

  • (a) Option A
  • (b) Option B
  • (c) Option C
  • (d) Option D

Answer: (d) Option D

6. The following forms of oxygen are involved in the ozone-oxygen cycle: O₂, O₃, and O₄

(a) Triatomic Oxygen (O3)

(b) Diatomic Oxygen (O2)

(c) Atomic Oxygen (O)

(d) All of these

Which of the following is the correct answer?

a) Option A

b) Option B

c) Option C

d) Option D

Answer: (d) Option D

Substances Principally Used in Ozone-Depletion

I chimneys

(II) All of the Human Activities

(III) Burning Fossil Fuels

(IV) Cooling and Refrigeration Applications, and Manufacturing of Foam Products

(a) All

(b) Only IV

Only I, II, and III

(d) Only I and II

Which of the following is the correct answer?

  • (a) Option A
  • (b) Option B
  • (c) Option C

Answer: (b) Option B

The Montreal Protocol is related to the protection of the ozone layer.

(a) Food Security

(b) Global Warming

(c) Sustainable Development

(d) Ozone Layer Depletion

Which of the following is the correct answer?

  • a) This
  • b) That
  • c) Those
  • d) None of the above

Answer: (d) None of the above

The Ozone Layer Depletion is a major risk associated with Extreme Ultraviolet Rays passing through the atmosphere.

Neurological Disorder

(b) The digestive system can be damaged

(c) Increased Liver Cancer

(d) Increased Skin Cancer

Which of the following is the correct answer?

  • (a) Option A
  • (b) Option B
  • (c) Option C
  • (d) Option D

Answer: (d)

In summer, UV rays are higher.

During summer, there is an increase in the amount of ozone in the atmosphere.

(b) The sun is especially busy in the summer

The Sun is closer to Earth, so UV rays have a shorter distance to travel and reach us.

  • None of the above

Which of the following is true?

  • a) The sky is green
  • b) The grass is blue
  • c) The ocean is blue

Answer: (c) The ocean is blue

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