Question

Give reasons for the Following :
~~~~~~~~~~~~~~~~~~~~~~~~~~~ a•)Fertilizers when used in excess cause pollution.
b•)A healthy person suffers from Malaria when infected by mosquito
bite.
c•)Drip irrigation minimizes wastage of water.
d•)Not all microorganisms are harmful to humans.
e•)Eating spoilt food causes food poisoning.​

Answer 1

Required Answer:-

a) Fertilizers when used in excess cause pollution.

• Fertilisers when used in excess caused then they cause air pollution because they contains many harmful chemicals which affects the environment.

b) A healthy person suffers from Malaria when infected by mosquito.

• A healthy person suffers from malaria when infected by mosquito because malaria is caused by Anopheles mosquito.

c) Drip irrigation minimize wastage of water.

• Drip irrigation minimize wastage of water because it is a method of irrigation which drops the water drop by drop.

d) Not all microorganisms are harmful to humans.

• All microorganisms are harmful to humans because some of the microorganisms are useful for humans as well.

e) Eating spoilt food causes food poisoning.

• Eating spoilt food causes food poisoning because they may contain some bacterias on them and they are oily food.