Science Question Answer (1 Marks)

The branch of agriculture which deals with feeding, shelter, health and breeding of domestic animals is called animal husbandry.

Cod liver oil of fish is rich in vitamin D.

Leguminous crops like pulses, beans, peas are generally grown between two cereals crops in crop rotation to restore the fertility of soil.

The cutting and gathering of mature food crop like wheat or paddy is known as harvesting.

The food materials that we obtain from animals are milk, meat and eggs.

A machine called combine is used for harvesting and threshing (Cutting of standing crop and recovering grains).

The government agency like food corporation of India (FCI) buy food grains from farmers and storing them properly.

Sickle is general purpose of harvesting tool which is used in the traditional harvesting of crops.

Cow and buffalo are two domestic animals which are used to obtained milk.

The process of beating out the grains from the harvested crop plants is called threshing.

Organisms fungus and moulds grow on stored food grains having higher moisture content.

A machine called combine is used for harvesting and threshing (Cutting of standing crop and recovering grains).

1. Sprinkler system.
2. Drip system.

The process in which grains are separated from chaff with the help of wind is called winnowing.

Sickle: A sickle is a hand-held agricultural tool used for harvesting, or reaping crops (as shown below)

Harvesting in our country is either done manually by sickle or by a machine called harvester. The other agricultural practices which are done by sickle are: preparing hay and also cutting some crops.

Paddy crop (rice crop) can tolerate standing water in the field whereas crops like wheat, gram cannot.

Honey is an animal food obtained from insect called “bees”.

Rotation of crops (leguminous and non-leguminous crops) in the same field replenishes the soil with nitrogen naturally and increases the soil fertility.

It is a simple tool which is used for removing weeds and for loosening the soil.

Manure and fertilizers are added to the fields by the farmers to maintain the fertility of soil.

These grasses is known as weed.

Goat is meat yielding animal and hen is egg yielding animal.

The nitrogen-fixing bacteria present in root nodules of leguminous plants is rhizobium bacteria.

The practice used for cultivating paddy is transplantation.

The implement used for sowing is seed drill.

The preparation of soil is the first step in the cultivation of a crop.

Agricultural practice weeding comes first.

Fish is good for health. We get cod liver oil from fish which is rich in vitamin D.

The best time for the removal of weeds is before they produce flowers and seeds.