GEOLOGY

EARTH SCIENCE

CLIMATE AND ENVIRONMENTAL CHANGE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What would be the most likely effect of an increase in the use of CFCs?
A
It wouldn’t make too much of a difference.
B
The ozone holes would get larger.
C
The ozone holes would get smaller.
D
Nothing would happen.
Explanation: 

Detailed explanation-1: -Depletion of this layer by ozone depleting substances (ODS) will lead to higher UVB levels, which in turn will cause increased skin cancers and cataracts and potential damage to some marine organisms, plants, and plastics.

Detailed explanation-2: -Answer and Explanation: The increased use of CFCs during the 1900s causes destruction of the ozone layer because the ozone holes grow or increase in size.

Detailed explanation-3: -Gaseous CFCs can deplete the ozone layer when they slowly rise into the stratosphere, are broken down by strong ultraviolet radiation, release chlorine atoms, and then react with ozone molecules.

Detailed explanation-4: -Chlorofluorocarbons (CFCs) cause significantly stratospheric ozone depletion and global warming relating to the greenhouse effect.

Detailed explanation-5: -Molina discovered that chlorofluorocarbons (CFCs) could deplete Earth’s atmospheric ozone layer, which blocks the sun’s damaging ultraviolet rays. When the scientists reported their findings in 1974, CFCs were widely used as refrigerant gases and as propellants in aerosol sprays.

There is 1 question to complete.