Question

Ozone layer depletion is the thinning of the ozone layer present in the upper atmosphere. This happens when the chlorine and bromine atoms in the atmosphere come in contact with ozone and destroy the ozone molecules. One chlorine can destroy 100,000 molecules of ozone. Because of the depletion of the ozone layer, humans are being exposed to the harmful ultraviolet radiations of the sun. This results in serious health issues among humans, such as skin diseases, cancer, sunburns, cataract, quick ageing and an weak immune system.

1. In which sphere Ozone layer depletion is found?

a. Ionosphere

b. Stratosphere

c. Lithosphere

d. None of these

2. Main cause of ozone holes and its depletion is

a. Propellants

b. Foam-blowing agents

c. Halocarbon refrigerants

d. All of these

3. What is a major risk linked with extreme ultraviolet rays through the atmosphere as a result of ozone layer depletion?

a. Neurological disorder

b. Digestive system gets damaged

c. Increased liver cancer

d. Increased skin cancer

4. CFCs are used as _______

a. fuel in airplanes

b. refrigerants in cooling units

c. paint

d. All of these

5. What element makes up ozone?

a. O₂

b. NO

c. O₃

d. NO₂

Answer 1

1. b. Stratosphere

2. d. All of these

3. d. Increased skin cancer

4. d. All of these

5. c. O₃