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Very Short Answer Type Questions


Q1: Which agricultural practice is carried out with the help of a sickle?

Ans: A sickle is a hand-held agricultural tool used for harvesting, or reaping crops.
Lakhmir Singh & Manjit Kaur: Crop Production And Management- 1 | Science Class 8Harvesting 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.

Q2 : What name is given to the cutting and gathering of a food crop like wheat or paddy?

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


Q3: Name the tool (or implement) used in the traditional harvesting of crops.

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


Q4: Name the process of beating out the grains from harvested crop.

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


Q5: Name the machine used in recovering the grain from already cut crop.

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


Q6: Name the machine which does the cutting of standing crops and recovers the grain too.

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


Q7: Name the process in which grains are separated from chaff and hay with the help of wind.

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


Q8: Name three food materials obtained from animals.

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


Q9: Name two domestic animals which are used to obtained milk.

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


Q10: Name one meat yielding animal and one egg yielding animal.

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


Q11: Name an animal food obtained from insect.

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


Q12: What name is given to that branch of agriculture which deals with feeding, shelter, health and breeding of domestic animals?

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


Q13: Name one major food nutrient provided by fish.

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


Q14: Name the vitamin/vitamins present in cod liver oil.

Ans: Cod liver oil of fish is rich in vitamin D.


Q15: Name one Government agency which is involved in procuring food grains (like wheat and rice) from farmers and storing them properly.

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


Q16: What type of organisms grow on stored food grains having higher moisture content?

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


Q17: Which crop is generally grown between two cereals crops in crop rotation to restore the fertility of soil?

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


Q18: State one advantages of growing a leguminous crop between two cereals crops.

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


Q19: Name the nitrogen-fixing bacteria present in root nodules of leguminous plants.

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


Q20: Which agricultural practice comes first: harvesting or weeding?

Ans: Agricultural practice weeding comes first.


Q21: Which is the first step in the cultivation of a crop?

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


Q22: For what purpose is a hoe used?

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


Q23: Name the implement used in sowing.

Ans: The implement used for sowing is seed drill.


Q24: Name the practice used for cultivating paddy.

Ans: The practice used for cultivating paddy is transplantation.


Q25: Name the two types of substances which are added two the fields by the farmers to maintain the fertility of soil.

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


Q26: Some grass is growing in a wheat field. What will it be known as?

Ans: These grass is known as weed.


Q27: Name one crop which can tolerate standing water (water-logging) in the field and one which cannot.

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


Q28: Which is the best time for the removal of weeds?

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


Q29:  Name two methods of irrigation with conserve water.

Ans: (i) sprinkler system

(ii) Drip system


Q30:   Fill in the following blanks:
(a) The same kind of plants grown and cultivated on a large scale at a place is called ___________.
(b) The first step before growing crops is ___________ of soil.
(c) For growing a crop, sufficient sunlight, ___________, and ___________ from the soil are essential.
(d) Damaged seeds would ___________ on top of water.
(e) Crop rotation helps in the replenishment of soil with ___________
(f) The supply of water to crops at different intervals is called ___________
(g) The unwanted plants present in a crop field are called ___________
(h) Dried ___________ leaves are used for storing food grains at home.
(i) Many people living in the ___________ areas consume fish as a major part of their diet.

(a) crop

(b) preparation

(c) nutrients; water

(d) float

(e) nitrogen

(f) irrigation

(g) weeds

(h) neem

(i) coastal

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FAQs on Lakhmir Singh & Manjit Kaur: Crop Production And Management- 1 - Science Class 8

1. What are the different methods of crop production?
Ans. Some of the different methods of crop production include organic farming, traditional farming, modern farming, and agroforestry.
2. How can farmers manage pests and diseases in crop production?
Ans. Farmers can manage pests and diseases in crop production through the use of biological control methods, crop rotation, use of resistant varieties, and timely application of pesticides.
3. What are the essential nutrients required for crop growth?
Ans. The essential nutrients required for crop growth include nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, iron, manganese, zinc, copper, molybdenum, and boron.
4. How can farmers improve soil fertility for better crop production?
Ans. Farmers can improve soil fertility for better crop production by adding organic matter, using cover crops, practicing crop rotation, and applying fertilizers according to soil test results.
5. What are the common irrigation methods used in crop production?
Ans. Some common irrigation methods used in crop production include surface irrigation, sprinkler irrigation, drip irrigation, and sub-irrigation.
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