How is spraying different from fumigation?

Weeds affect the crop plants by

$(a)$ Distinguish between macronutrients and micronutrients on the basis of $(i)$ their functions and $(ii)$ amount required by plants. $(b)$ Classify the following elements as macro or micronutrients in plants: $(i)$ Nitrogen,$(ii)$ Zinc,$(iii)$ Copper,$(iv)$ Potassium. $(c)$ In what way is the deficiency of these nutrients harmful to crops?

Animal husbandry is the scientific management of
$(i)$ animal breeding
$(ii)$ culture of animals
$(iii)$ animal livestock
$(iv)$ rearing of animals

Rajan and his family members were going to Dalhousie in a car to enjoy their weekly holidays. While on the way,it started raining. During the journey,Rajan observed that when another vehicle or bus passed them and honked,the intensity of the sound produced was higher than it would be in an area without rain.
$(a)$ What,according to you,is the reason behind the increase in the intensity of sound during rain?
$(b)$ What value do you attribute to Rajan's observation?

Match the column $A$ with the column $B$:

Column $A$	Column $B$
$(a)$ Catla	$(i)$ Bottom feeders
$(b)$ Rohu	$(ii)$ Surface feeders
$(c)$ Mrigal	$(iii)$ Middle-zone feeders
$(d)$ Fish farming	$(iv)$ Culture fishery