Class 8 Science Chapter 1 HOTS Questions - Crop Production and Management

Ans: The plants of same kind grown at a place constitute a crop.

Ans: Domestication of plants is called agriculture.

Ans: Wheat and rice

Ans: Through seeds, soil and air.

Ans: Because it saves labour and time.

Ans: Sowing is the process of planting seeds.

Ans: A seed drill is a device allowing to planting seeds in the soil.

Ans: Manures and Fertilizers.

Ans: To kept it for a longer time or for longer use.

Ans: Tubewells and rivers.

Ans: Rabi season crops are sown in the beginning of winter (October to November) and harvested by March or April.
Examples: Wheat, Barley, Gram, Potato and Mustard. 

Ans: Kharif season crops or summer season crops are grown at the beginning of the monsoon in June to July and are harvested by Sept to Oct.
Example: Rice, Maize, Groundnut, Pulses and Cotton.

Ans: The fields are left uncultivated and are allowed to rest and regenerate for a season. The soil replenish naturally.

Ans: After threshing seeds or grains are separated from chaff or hay by wind. Chaff blows in the air and the seeds remain. This separation of grain and chaff done by winnowing.

Ans: Fisheries include rearing, catching, selling, etc., of fish, molluscs and crustaceans (prawns, crabs, etc.).

Ans: Several activities done by farmers to cultivate the crop and these activities or tasks are referred to as agricultural practices.

Ans: Plough is a tool used for tilling the soil, adding fertilizers to the crop, removing the weeds, scraping of soil, etc. while hoe is a tool which is used for cultivating, weeding, or loosening the soil.

Ans: The growing of vegetables, fruits and flowers in gardens on large scale is called horticulture.

Ans: Removal of weeds is called weeding. It is necessary because weeds compete the crop plants and affect its growth.

Ans: Harvesting is the process of gathering or cutting mature crops from the fields. And the process by which grain seeds are seperated from harvested crop are called threshing.