Question

1. Discuss, why pesticides should be used in very accurate concentration and in very appropriate manner ?

2. Enlist some desirable traits for which cross breeding is done in poultry bird.

3. Differentiate between. (III) Inland fishery and Marine fishery. (IV) Apiculture and aquaculture.

Answer 1

1. Pesticides are used in very accurate concentration and in a very appropriate manner, because if not used so it will

• Harm the soil and loss fertility
• Prevent the replenishment of organic matter.
• Kill the microorganisms of soil.
• Cause air, water and soil pollution.
• Risk the health of person handling the pesticides.
• Affect the growth of crops.

2. The following are some desirable traits for cross breeding in poultry birds:

• Good quality and large size of eggs
• Good quality meat
• Low maintenance requirements
• High resistance to diseases.
• Tolerance to high temperature.
• Ability to utilise cheaper diets produced from agricultural wastes.

3. Inland and Marine Fishery

Inland Fishery	Marine Fishery
It consists of fishing in fresh water and brackish water.	It consists of fishing in ocean or sea water along the coastal line of deep sea bound it.
Most fish production is through aquaculture	most fish production is through a process called mariculture.

Apiculture and Aquaculture

Apiculture	Aquaculture
It is the rearing and maintenance of honeybees for obtaining honey, wax and other substances	it refers to the rearing, care and maintenance of fishes(both fresh water and marine) to use as food and for commercial purposes.