MCQ Questions for Class 8 Science Chapter 1 Crop Production and Management

Students are advised to practice the NCERT MCQ Questions for Class 8 Science Chapter 1 Crop Production and Management with Answers Pdf free download is available here. MCQ Questions for Class 8 Science with Answers are prepared as per the Latest Exam Pattern. Students can solve these Crop Production and Management Class 8 MCQs Questions with Answers and assess their preparation level.

Crop Production and Management Class 8 MCQs Questions with Answers

Solving the Crop Production and Management Multiple Choice Questions of Class 8 Science Chapter 1 MCQ can be of extreme help as you will be aware of all the concepts. These MCQ Questions on Crop Production and Management Class 8 with answers pave for a quick revision of the Chapter thereby helping you to enhance subject knowledge. Have a glance at the MCQ of Chapter 1 Science Class 8 and cross-check your answers during preparation.

Question 1.
Rhizobium bacteria fix atmospheric
(a) nitrogen
(c) carbon dioxide
(b) oxygen
(d) hydrogen

Answer

(a) nitrogen
Nitrogen of atmosphere is fixed by rhizobium bacteria.


Question 2.
The supply of water to crops at different intervals is called
(a) watering
(b) irrigation
(c) harvesting
(d) none of these

Answer

(b) irrigation
The supply of water to crops at different intervals is called irrigation.


Question 3.
The sources of irrigation are:
(a) wells
(b) damr
(c) canals
(d) all of these

Answer

(d) all of these
The sources of irrigation are wells, dams and canals.


Question 4.
The chemicals used to control weeds are called:
(a) pesticides
(b) insecticides
(c) weedicides
(d) all of these

Answer

(c) weedicides
The chemicals used to control weeds are called weedicides.


Question 5.
Harvesting is a task of:
(a) cutting of crop after it is-mature
(c) separating of grain seeds from chaff
(b) cutting of crop before it is mature
(d) none of these

Answer

(a) cutting of crop after it is-mature
Harvesting is a task of cutting of crop after it is mature.


Question 6.
Winnowing is a method of separating:
(a) soil from chaff
(b) grain from chaff
(c) soil from grain
(d) none of these

Answer

(b) grain from chaff
Winnowing is a method of separating grain from chaff.


Question 7.
At home to store grains we use:
(a) wet neem leaves
(b) dried neem leaves
(c) dried mango leaves
(d) dried peepal leaves

Answer

(b) dried neem leaves
Dried neem leaves are used to store grains at home.


Question 8.
The plant roots containing nitrogen fixing bacteria are:
(a) maize
(b) potato
(c) pea
(d) onion

Answer

(c) pea
The roots of pea plantcontain nitrogen fixing bacteria because it is a leguminous


Question 9.
A combined harvester and thresher is called:
(a) combo
(b) combine
(c) harvester-thresher
(d) none of these

Answer

(b) combine
Combine is a combined harvester and thresher.


Question 10.
Before storing, the grains are properly dried in the:
(a) sun
(b) air
(c) fan
(d) none of these

Answer

(a) sun
The grains are properly dried in the sun before storing.


Question 11.
Which one of the following provide us manure:
(a) dog
(b) cattle
(c) frog
(d) birds

Answer

(b) cattle
Cattle provide us manure in the form of dung.


Question 12.
The process of separating grains from chaff is known as:
(a) threshing
(b) harvesting
(c) winnowing
(d) transplantation

Answer

(a) threshing
Threshing is the process of separating grains from chaff.


Question 13.
The process of cleaning grains from chaff is known as:
(a) freshing
(b) harvesting
(c) winnowing
(d) transplantation

Answer

(c) winnowing
Winnowing is the process of separating grains from chaff.


Question 14.
Growing of legume crop in between wheat crops is called:
(a) crop improvement
(b) crop rotation
(c) mixed cropping
(d) none of these

Answer

(b) crop rotation
Crop rotation is growing of legume crop in between wheat crop.


Question 15.
Agriculture can be defined as:
(a) art of growing vegetables
(b) art of growing fruits
(c) art of growing flowers
(d) all of these

Answer

(d) all of these
All the these. Agriculture is an art of growing vegetables, flowers and fruits.


Question 16.
Pesticides are used to destroy:
(a) pests
(b) weeds
(c) crops
(d) none of these

Answer

(a) pests
Pesticides are used to destroy pests.


Question 17.
is an organic matter.
(a) manure
(b) fertilizer
(c) weedicide
(d) pesticide

Answer

(a) manure
Manure is an organic matter.


Question 18.
‘Silos’ are used to:
(a) grow crops in the fields
(b) protect grains from pests like rats and insects
(c) storage damaged grains
(d) none of these

Answer

(b) protect grains from pests like rats and insects
Silos are used to, protect grains from pests like rats and insects.


Question 19.
What is the effect of weeding ?
(a) It does not affect the yields
(c) It helps in growth of crops by increasing the yield
(b) It affects- the growth of crops by reducing the yield
(d) None of the above

Answer

(b) It affects- the growth of crops by reducing the yield
Weeding affects the growth of crops by reducing the yield.


Question 20.
Which of the following can make their own food:
(a) humans
(b) animals
(c) plants
(d) all of these

Answer

(c) plants
Tilling does not help in losing moisture whereas it helps in improving air circulation in the soil and loosening the soil.


Question 21.
Which of the following body function is carried out by the energy from the food:
(a) digestion
(b) respiration
(c) excretion
(d) all of these

Answer

(c) excretion
Plants can make their own food.


Question 22.
The plants of the same kind grown and cultivated at one place on a large scale is called:
(a) crop
(b) pulses
(c) cereals
(d) none of these

Answer

(d) none of these
All of these need energy from the food.


Question 23.
The science of agriculture includes:
(a) management of plants
(b) management of animals
(c) management of plants and animals
(d) management of humans

Answer

(a) management of plants
Crop are the plants of the same kind grown and cultivated at one place on a large


Question 24.
The crops which are sown in the rainy season are called:
(a) kharif crops
(b) rabi crops
(c) zayed crops
(d) none of these

Answer

(a) kharif crops
Management of plants is included in the science of agriculture.


Question 25.
The crops grown in the winter season are called:
(a) kharif crops
(b) rabi crops
(c) zayed crops
(d) none of these

Answer

(a) kharif crops
Kharif crops are sown in rainy season.


Question 26.
Big pieces of soil are called:
(a) stones
(b) crumbs
(c) sand
(d) none-of these

Answer

(b) crumbs
Rabi crops are sown in winter season.


Question 27.
The loosened soil helps in the growth of:
(a) earthworms
(b) microbes
(c) plants
(d) all of these

Answer

(b) microbes
Crumbs are big pieces of soil.


Question 28.
The process of loosening and turning of the soil is called:
(a) sowing
(b) tilling or ploughing
(c) levelling
(d) none of these

Answer

(d) none of these
All of these. The loosened soil helps in the growth of earthworms, microbes and


Question 29.
The levelling of soil is done with the help of a:
(a) leveller
(b) plough
(c) hoe
(d) cultivator

Answer

(b) plough
Tilling or ploughing is aprocess of loosening and turning of the soil.


Question 30.
Weeds are defined as:
(a) useful plants present in the field
(b) undesirable pests present in the field
(c) plants that cannot be used at all
(d) undesirable plants present in the field

Answer

(a) useful plants present in the field
Leveller is used for levelling of soil.


Question 31.
The tool used for removing weeds is:
(a) plough
(c) hoe
(b) leveller
(d) none of these

Answer

(d) none of these
Undesirable plants present in the field are called weeds.


Question 32.
Paddy is grown in:
(a) winter season
(b) rainy season
(c) summer season
(d) all of the above

Answer

(c) summer season
Hoe is tool used for removing weeds.


Question 33.
Good, healthy seeds when put in water then they:
(a) sink
(b) float
(c) can’t say
(d) none of these

Answer

(b) float
Rainy season is the best season for growing paddy.


Question 34.
Transplantation is done, in the case of :
(a) maize
(b) wheat
(c) paddy
(d) none of these

Answer

(a) maize
Good, healthy seeds when put in water is sink.


Question 35.
Which of the following is not a fertiliser:
(a) urea
(b) cow-dung
(c) potash
(d) super phosphate

Answer

(c) potash
Paddy transplanted.


Question 36.
Fertilisers are produced in:
(a) fields
(b) wells
(c) factories
(d) none of these

Answer

(b) wells
Cow dung is not a fertiliser.


Question 37.
Which of the following produces manures:
(a) cattle dung
(b) human- waste
(c) plant residue
(d) all of these

Answer

(c) plant residue
Fertilisers are produced in factories.


Question 38.
Which of the following quality of soil is improved by manures:
(a) water retaining capacity
(b) toll
(c) nutrients
(d) all of these

Answer

(d) all of these
All of these, (cattle dung, human waste, plant residue) produces manures.


Question 39.
Rhizobium bacteria is present in the nodules of the roots:
(a) wheat
(b) leguminous plants
(c) maize
(d) onion

Answer

(d) onion
All of these. Manures improve the water retaining capacity, texture and nutrients ofsoil.


Question 40.
Which of the following is not true about tilling:
(a) It improves air circulation in the soil
(b) It helps in loosening the soil
(c) It helps in losing moisture
(d) It is also called ploughing

Answer

(b) It helps in loosening the soil
Rhizobium bacteria is present in the nodules of the roots of leguminous plants.


Match the Column-A with Column-B:

Question 1.

Column-A Column-B
(a) Agriculture (i) are adopted to provide food to our growing population.
(b) animal husbandry (ii) practice of farming and cultivating of crop plants.
(c) Agricultural implements (iii) the rearing dnd caring of animals to obtain food on large scale.
(d) Agricultural practices (iv) tools and machinery used for agricultural practices.
Answer
Column-A Column-B
(a) Agriculture (ii) practice of farming and cultivating of crop plants.
(b) animal husbandry (iii) the rearing and caring of animals to obtain food on large scale.
(c) Agricultural implements (iv) tools and machinery used for agricultural practices.
(d) Agricultural practices (i) are adopted to provide food to our growing population.

Question 2.

Column-A Column-B
(a) Levelling (i) watering the crop plants.
(b) Broadcasting (ii) cutting and gathering of crops.
(c) Compost (iii) the process of making soil surface even and smooth.
(d) Irrigation (iv) the method of sowing seeds manually by hand in the field.
(e) Harvesting (v) inorganic nutrients formed by the decomposition of organic matters by microorganisms under a covered pit.
Answer
Column-A Column-B
(a) Levelling (iii) the process of making soil surface even and smooth.
(b) Broadcasting (iv) the method of sowing seeds manually by hand in the field.
(c) Compost (v) inorganic nutrients formed by the decomposition of organic matters by microorganisms under a covered pit.
(d) Irrigation (i) watering the crop plants.
(e) Harvesting (ii) cutting and gathering of crops.

Question 3.

Column-A Column-B
(a) Rabi (i) Microbes
(b) Kharif (ii) 2,4-D
(c) Nitrogen fixing bacteria (iii) Wheat
(d) Soil (iv) Pea
(e) Weedicide (v) Maize
Answer
Column-A Column-B
(a) Rabi (iii) Wheat
(b) Kharif (v) Maize
(c) Nitrogen fixing bacteria (iv) Pea
(d) Soil (i) Microbes
(e) Weedicide (ii) 2,4-D

State whether the following statements are True or False:

Question 1.
Earth worm is a friend of the fanner.

Answer

True


Question 2.
Crop rotation helps to increase the fertility of soil.

Answer

True


Question 3.
Kharif crops need more water than rabi crops.

Answer

True


Question 4.
The function of manures and fertiliser are different.

Answer

True


Question 5.
Paddy requires a lot of water.

Answer

True


Question 6.
Crop can be damaged by excess supply of water.

Answer

True


Question 7.
Manures are very rich in plant nutrients like nitrogen, phosphorus and potassium.

Answer

False


Question 8.
In sprinkler system, the water falls drop by drop just at the position of the roots.

Answer

False


Question 9.
The removal of husk from grains is called threshing.

Answer

True


Question 10.
Weedicides make the weeds grow well.

Answer

False


Question 11.
Canals, wells and rains are the sources of water for irrigation.

Answer

True


Question  12.
Humans settled down to live in one place only after they learnt to grow crops.

Answer

True


Question 13.
Supply of water to crops at one time is called irrigation.

Answer

False


Question 14.
We get cod liver oil from fish which is rich in vitamin-D.

Answer

True


Question 15.
Fertilisers are prepared in the fields.

Answer

False


Fill in the blanks:
Question 1.
The growing of same kind of plants is called ……………………

Answer

crop


Question 2.
Levelling of soil is done by ……………………

Answer

leveller


Question 3.
Large scale storing of grains is done in ……………………

Answer

silos and granaries


Question 4.
Manure is an …………………… substance obtained from the decomposition of plant or animal wastes.

Answer

organic


Question 5.
The process of loosening and turning of the soil is called …………………… or ……………………

Answer

tilling or ploughing


Question 6.
Plough contains a strong triangular iron strip called ……………………

Answer

ploughshare


Question 7.
The crops grown in the winter season are called …………………… crops.

Answer

rabi


Question 8.
Ploughing helps to …………………… the soil.

Answer

loosen


Question 9.
Hoe is a tool used for removing ……………………

Answer

weeds


Question 10.
The chemicals used to kill weeds are called ……………………

Answer

weedicide


Question 11.
Seed drill is used for ……………………

Answer

sowing


Question 12.
The bacteria present in grain plant is ……………………

Answer

rhizobium


Question 13.
A fertiliser is an …………………… salt.

Answer

inorganic


Question 14.
Manures provides a lot of …………………… to the soil.

Answer

humus


Question 15.
Manures ……………. the water holding capacity of the soil.

Answer

enhances


Question 16.
Unwanted plants which grow along with the main crop are called ……………………

Answer

weeds


Question 17.
The machine used for cutting and threshing of crops are called ……………………

Answer

combine


Question 18.
The rearing and caring of animal to obtain food on large scale is called ……………………

Answer

animal husbandry


Question 19.
Watering the crop plants is called …………………..

Answer

irrigation


Question 20.
The bacteria present in the nodules of the roots of leguminous plants fix atmospheric ……………………

Answer

nitrogen


Question 21.
The cutting of crop after it is mature is called ……………………

Answer

harvesting


Question 22.
…………………… is the process of transferring healthy seedlings from a nursery to the main field.

Answer

Transplantation


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