Question

Q6. Consider the following statements
1. CFCs are Short-lived chemical compounds that eventually rise into the stratosphere; where they are broken apart by the sun’s ultraviolet radiation, releasing chlorine atoms that go on to destroy ozone molecules.
2. Tropospheric ozone protects life on the planet by absorbing potentially harmful ultraviolet radiation that can cause skin cancer and cataracts, suppress immune systems and damage plant life.
Choose the incorrect statements from the options given below

• A. a) 1 only
• B. b) 2 only
• C. c) Both 1 and 2
• D. d) Neither 1 nor 2

Answer 1

The correct option is C c) Both 1 and 2

1. CFCs are long-lived chemical compounds that eventually rise into the stratosphere, where they are broken apart by the sun’s ultraviolet radiation, releasing chlorine atoms that go on to destroy ozone molecules.
2. CFCs have lifetimes from 50 to 100 years, so they linger in the atmosphere for a very long time
3. Stratospheric ozone protects life on the planet by absorbing potentially harmful ultraviolet radiation that can cause skin cancer and cataracts, suppress immune systems and damage plant life.