1. What do you mean by the term crop? Explain briefly the types of crops .
2. Define the term agricultural practices and also state the important steps taken during crop production.
3. What is animal husbandry ? What products do you get from animals as food and other than food.
4. Name the two diseases caused by a (a) virus (b) bacteria (c) protozoa
5. What is microbs ? How do microorganisms help to clean environment?
6.What are food preservatives? Explain five common food preservatives
7. Mention five beneficial effects of bacteria and fungus
Answers
Question 1.) Crop may refer either to harvested parts or to the harvest in a more refined state.
Explanation:
1st crop is the term used to describe the plant grown on a field on large scale
there are two types of crop Rabi and kharif crop
Rabi crops= Rabi crops are sown in the winter season in October or November and are harvested by March or April thus they also called winter season crop EX Mustard, wheat, potato, kharif crop= kharif crop are sown in the rainy season by June /July and are harvested by September /October. thus are also know as summer season crop Example rice , maize, cotton,
2nd Agricultural practise are those practise which involve the necessary step to be taken during the production of crop .
some of the most important steps taken during crop production are as under .
1st soil preparation .
2nd sowing .
3rd application of manure and fertiliser to the soil
4th irrigation .
5th weeding
6th harvesting
7th threshing and window
8th storage ofgrain
3rd =the branch of science that deals with rearing management and care of an animals for food and other needs is called animal husbandry
below are some examples that show some of the food products obtained from the animals
1st poultry animals like hens and ducks are the source of eggs and meat
2nd meat is also obtained from animals like chickens and goats .some sea animals like prawns,fish, shrimps etc also eaten by many people
3rd domestic animal like cows buffaloes and goats provide us milk .milk is used in various food products like ghee butter etc
4th honey is obtained from honeybee. the rearing of honeybees for honey is called apiculture.
4th = 1st