Chemistry
Give reasons for the following.
Destruction of ozone layer is harmful for both humans and plants.
Answer
Destruction of ozone layer is harmful for humans because U.V. rays from the sun cause the following damage to humans:
- Sun burn and skin cancer
- Eye cataract and eye damage
- Early aging of skin
- Weakening of immune system
- Disruption in function of DNA
- Severe damage to cells of animals.
U.V. rays also damage plants in the following ways:
- Retards plant growth.
- Inhibits pollen germination
- Reduces chlorophyll content
- Affects the quality of vegetables
- Disrupts ecosystem
- Increases harmful mutations
Related Questions
Give reasons for the following.
In absence of green house gases the surface temperature of the earth is maintained.
Give reasons for the following.
The formation of ozone involves a chemical reaction called photolysis.
Name or state the following:
- An atmospheric pollutant produced during lightening discharge.
- A form of wet deposition of acid rain other than rain water.
- An atmospheric pollutant responsible for both global warming and ozone depletion.
- A green house gas which contains carbon and hydrogen only.
- The atom which reacts with oxygen to form ozone.
Acid rain has adverse effects on the environment. State the effect acid rain has on the following - i.e., A: Increases or B: Decreases
- The nutrients present in the soil.
- The acidity of the soil.
- The fertility of the soil.
- The pH of water bodies.
- The rate of photosynthesis in plants.