Crop Production And Management Online Test 8th Science Lesson 21 Questions in English

Question 1 of 93

1. Question

Assertion(A): Humans and animals are directly or indirectly dependent on plants

Reason(R): Animals and humans cannot make their own food

A) Both (A) and (R) are correct, but (R) does not explain (A)
B) Both (A) and (R) are wrong
C) Both (A) and (R) are correct and (R) explains (A)
D) (A) is Correct and (R) is wrong

Question 2 of 93

2. Question

Which of the following statement is correct?

Energy from the food is used by the organisms for carrying out their various body functions.
Plants and animals are the main source of food for all the organisms
In order to provide food for a larger population production, proper planning, management and distribution is needed.

A) 1, 2
B) 1, 3
C) 2, 3
D) All the above

Question 3 of 93

3. Question

Which of the following statement is incorrect?

Agriculture has always been the backbone of our country’s economy
Ever since the Green Revolution, we have been cultivating different types of crops to cater the increasing demand.

A) 1 alone
B) 2 alone
C) 1, 2
D) None

Question 4 of 93

4. Question

Which of the following is not a Kharif crop?

A) Paddy
B) Maize
C) Pea
D) Cotton

Question 5 of 93

5. Question

During which time Rabi crops are grown?

A) June to September
B) October to march
C) Summer season
D) January to march

Question 6 of 93

6. Question

Which of the following is not a Zaid crop?

A) Muskmelon
B) Watermelon
C) Groundnut
D) Cucumber

Question 7 of 93

7. Question

Which of the following are food crops?

Paddy
Maize
Sorghum

A) 1, 2
B) 1, 3
C) 2, 3
D) All the above

Question 8 of 93

8. Question

Match the following

Fodder crops 1. Croton

Fabre crops 2. Cotton

Oil crops 3. Sesame

Ornamental crops 4. Millets

A) 3, 1, 2, 4
B) 4, 1, 2, 3
C) 4, 2, 3, 1
D) 4, 3, 2, 1

Question 9 of 93

9. Question

_____ is the largest producer of bananas and mangoes in the world

A) China
B) Bangladesh
C) India
D) Brazil

Question 10 of 93

10. Question

Which of the following statement is correct?

Growing crops in the field is a skilful job.
Physical and mental skills are involved in this practice
Different activities in crop production are ploughing, sowing, applying fertilizers, harvesting and seed storage

A) 1, 2
B) 1, 3
C) 2, 3
D) All the above

Question 11 of 93

11. Question

Which of the following statement is correct?

Soil preparation is the first step in the crop production practice.
The most important aspect in agricultural process is to loosen the bottom soil.
The loosened soil helps in the growth of earthworm and soil microbes.

A) 1, 2
B) 1, 3
C) 2, 3
D) All the above

Question 12 of 93

12. Question

Which of the following are absorbed by plants through root from soil?

Water
Minerals
Air
Nutrients

A) 1, 2, 4
B) 1, 3, 4
C) 2, 3, 4
D) All the above

Question 13 of 93

13. Question

By which of the following methods soil is prepared?

Ploughing
Levelling
Basal manuring

A) 1, 2
B) 1, 3
C) 2, 3
D) All the above

Question 14 of 93

14. Question

Which of the following facilitate the availability of nutrients in the root zone of cultivating crops?

A) Ploughing
B) Levelling
C) Basal manuring
D) All the above

Question 15 of 93

15. Question

Assertion(A): A plough is made of wood and is drawn by a pair of bulls or horses used for

levelling of soil

Reason(R): Plough is mainly used for tilling the soil, to add fertilisers to the crop, remove weeds

and other waste materials from the field and also to turn the soil

a) Both (A) and (R) are correct, but (R) does not explain (A)
b) Both (A) and (R) are wrong
c) Both (A) and (R) are correct and (R) explains (A)
d) (A) is Correct and (R) is wrong

Question 16 of 93

16. Question

The main part of the plough is called as___________

a) Plough shaft
b) Plough share
c) Plougher
d) Leveller

Question 17 of 93

17. Question

Which of the following statement about hoe is correct?

It is a simple agricultural tool which is used to till the land, remove weeds and dig up soil
It has a long wooden rod with a bent iron plate at both the ends

a) 1 alone
b) 2 alone
c) 1, 2
d) None

Question 18 of 93

18. Question

Which of the following statement is correct?

Cultivator involves the use of a tractor to drive the cultivator
Cultivators also kill weeds and dig up unwanted vegetation available in the field
Cultivators takes much more time

a) 1, 2
b) 1, 3
c) 2, 3
d) All the above

Question 19 of 93

19. Question

Which of the following statement is incorrect?

The levelling of soil is done with an implement called the leveller, which is a heavy wooden or iron plank.
Levelling the field also helps in uniform distribution of water during irrigation.

a) 1 alone
b) 2 alone
c) 1, 2
d) None

Question 20 of 93

20. Question

Assertion(A): To increase the fertility of the soil, we add manure to the soil even before we begin

the sowing

Reason(R): Application of green manure and farm yard manure will not enhance the growth

a) Both (A) and (R) are correct, but (R) does not explain (A)
b) Both (A) and (R) are wrong
c) Both (A) and (R) are correct and (R) explains (A)
d) (A) is Correct and (R) is wrong

Question 21 of 93

21. Question

_____ is the second step in crop production

a) Levelling
b) Manuring
c) Sowing
d) None

Question 22 of 93

22. Question

Assertion(A): Sowing is the actual process of planting the seeds in the soil.

Reason(R): The seeds that are sown have to be selected very carefully to have high quality.

a) Both (A) and (R) are correct, but (R) does not explain (A)
b) Both (A) and (R) are wrong
c) Both (A) and (R) are correct and (R) explains (A)
d) (A) is Correct and (R) is wrong

Question 23 of 93

23. Question

____ method is also called broadcasting

a) Sowing by hand
b) Seed Drill
c) Dibbling
d) All the above

Question 24 of 93

24. Question

Which of the following statement is correct?

Seed Drill is an old method of sowing seeds
Seed drills ensure that the seeds are planted at equal intervals and at the correct depth in the soil
It is usually done by attaching iron drills to a tractor

a) 1, 2
b) 1, 3
c) 2, 3
d) All the above

Question 25 of 93

25. Question

Dibbling is a done with the help of_______

a) Cultivator
b) Levellor
c) Hand
d) All the above

Question 26 of 93

26. Question

Assertion(A): Transplanting is removal of an actively growing seedling from one place and

planting it in the main field for further growth till harvest

Reason(R): Transplanting makes use of pre grown plants, seedlings or vegetative propagated

Clones

a) Both (A) and (R) are correct, but (R) does not explain (A)
b) Both (A) and (R) are wrong
c) Both (A) and (R) are correct and (R) explains (A)
d) (A) is Correct and (R) is wrong

Question 27 of 93

27. Question

Which of the following statement is correct?

If seeds are simply scattered on top they are likely to be blown away or eaten by animals or birds
If we sow them too deep into the ground, they will not germinate due to lack of air
The seeds must be sown at the correct depth in the soil

a) 1, 2
b) 1, 3
c) 2, 3
d) All the above

Question 28 of 93

28. Question

Assertion(A): The seeds that are sown should be of the highest quality

Reason(R): Planting seeds at equidistance have been proved to increase the yield of the farm.

a) Both (A) and (R) are correct, but (R) does not explain (A)
b) Both (A) and (R) are wrong
c) Both (A) and (R) are correct and (R) explains (A)
d) (A) is Correct and (R) is wrong

Question 29 of 93

29. Question

The substances which are added to the soil, that enhance nutrients of soil are called as____

a) Manure
b) Fertilizers
c) Both a and b
d) None

Question 30 of 93

30. Question

30._____ is an organic substance obtained from the decomposition of plants or animal wastes

a) Urea
b) Fertilizer
c) Manure
d) All the above

Question 31 of 93

31. Question

Which of the following can be increased by manure?

Water-holding capacity
Soil aggregation
Soil aeration
Permeability

a) 1, 3, 4
b) 2, 3, 4
c) 1, 2, 3
d) All the above

Question 32 of 93

32. Question

Fertilizers are mainly composed of____

Urea
Ammonium sulphate
NPK

a) 1, 2
b) 1, 3
c) 2, 3
d) All the above

Question 33 of 93

33. Question

Which of the following statement is correct?

Water alone is important for the proper growth and development of plants
Plants absorb water from their surrounding with the help of the root system.
The time and frequency of irrigation varies from crop to crop, soil to soil and season to season.

a) 1, 2
b) 1, 3
c) 2, 3
d) All the above

Question 34 of 93

34. Question

Which of the following is not a source of irrigation?

a) Pond
b) Lake
c) Sea
d) Dam

Question 35 of 93

35. Question

How many methods of irrigation are carried out?

a) 3
b) 2
c) 4
d) 5

Question 36 of 93

36. Question

Which of the following statement about manual irrigation is correct?

In these methods, irrigation is done manually
Pumps are also commonly used for lifting water from various sources
Diesel, biogas, electricity and solar energy are the few important sources of energy needed to run these pumps.

a) 1, 2
b) 1, 3
c) 2, 3
d) All the above

Question 37 of 93

37. Question

The main advantage of traditional method is_____

a) Easy to operate
b) Cheaper
c) Even distribution of water
d) All the above

Question 38 of 93

38. Question

Which of the following statement is incorrect?

The modern irrigation methods help to overcome the problems exist in the traditional methods
It also facilitates the even distribution of moisture in the field

a) 1 alone
b) 2 alone
c) 1, 2
d) None

Question 39 of 93

39. Question

Which of the following statement about Sprinkler System is correct?

This method is much advisable in areas were water scarcity does not exists
Here a pump is connected to pipes which generate pressure and water is sprinkled through the fine nozzles of pipes.

a) 1 alone
b) 2 alone
c) 1, 2
d) None

Question 40 of 93

40. Question

Which of the following statement about drip irrigation is correct?

In drip system, water is released drop by drop exactly at the root zone using a hose or pipe
This method is considered as the effective one in regions where the availability of water is less

a) 1 alone
b) 2 alone
c) 1, 2
d) None

Question 41 of 93

41. Question

The global population is expected to be 9 billion by the year____

a) 2030
b) 2040
c) 2025
d) 2050

Question 42 of 93

42. Question

Agriculture activities alone utilize____% of the available fresh water resources

a) 40
b) 70
c) 50
d) 65

Question 43 of 93

43. Question

The undesirable plants grown along with the main crops are called_____

a) Weed
b) Ferns
c) Tilers
d) All the above

Question 44 of 93

44. Question

Which of the following statement is correct?

Weeding is an important process because weeds compete with the crop plants for the nutrients, sunlight, water, space and other resources
Farmers adopt many ways to remove weeds and control their growth

a) 1 alone
b) 2 alone
c) 1, 2
d) None

Question 45 of 93

45. Question

_____ is the oldest and most efficient method for controlling weeds

a) Tillage methods
b) Mechanical methods
c) Summer tillage
d) All the above

Question 46 of 93

46. Question

____ is one of the practical methods of destroying weeds of all categories.

a) Tillage methods
b) Mechanical methods
c) Summer tillage
d) All the above

Question 47 of 93

47. Question

Deep ploughing after harvest of___ crop is useful for destroying annual and perennial weeds

a) Rabi
b) Zaid
c) Kharif
d) All the above

Question 48 of 93

48. Question

Assertion(A): In Biological weed control method bio agents like insects and pathogens are used to control weeds

Reason(R): The objectives of biological control are not eradication, but reduction and

regulation of the weed population

a) Both (A) and (R) are correct, but (R) does not explain (A)
b) Both (A) and (R) are wrong
c) Both (A) and (R) are correct and (R) explains (A)
d) (A) is Correct and (R) is wrong

Question 49 of 93

49. Question

Which of the following statement is correct?

Chemical methods are very effective in certain cases and have great scope in weed control
These chemicals are mixed with water and sprayed over the crops.

a) 1 alone
b) 2 alone
c) 1, 2
d) None

Question 50 of 93

50. Question

There are over____ species of weeds around the world.

a) 30000
b) 3000
c) 1800
d) 18000

Question 51 of 93

51. Question

How weed species around the world causes serious losses to crops?

a) 1800
b) 18000
c) 30000
d) 2800

Question 52 of 93

52. Question

Which of the following crops are harvested using Manual harvesting?

a) Green gram
b) Black gram
c) Horse gram
d) All the above

Question 53 of 93

53. Question

53._____ is the process of separating the grains from their chaffs or pods

a) Threshing
b) Winnowing
c) Kneeing
d) All the above

Question 54 of 93

54. Question

Which of the following statement is correct?

The crops need close examination to ensure that harvesting is not premature.
Premature harvesting leads to shedding of seeds and loss of crop
If the crops are over ripened, they lose their value in the market and it becomes inconsumable in certain cases

a) 1, 2
b) 1, 3
c) 2, 3
d) All the above

Question 55 of 93

55. Question

Assertion(A): Storage is an important aspect of postharvest technology, because the crop is

seasonally produced but consumed through-out the year

Reason(R): Before storing, harvested grains should be made free from moisture

a) Both (A) and (R) are correct, but (R) does not explain (A)
b) Both (A) and (R) are wrong
c) Both (A) and (R) are correct and (R) explains (A)
d) (A) is Correct and (R) is wrong

Question 56 of 93

56. Question

Spraying of Chemical vapors to minimize pest and insets is called as____

a) Fumigation
b) Funigation
c) Threshing
d) Winnowing

Question 57 of 93

57. Question

When was FCI set up in Chennai?

a) 1965
b) 1969
c) 1956
d) 1967

Question 58 of 93

58. Question

Which of the following statement is incorrect?

The stored grains are inspected from time to time to make sure that they are free from diseases and pests.
The different categories of agricultural produce needing storage are food grains, oil seeds, seeds and folder.

a) 1 alone
b) 2 alone
c) 1, 2
d) None

Question 59 of 93

59. Question

How many methods of crop production are there?

a) 4
b) 2
c) 3
d) 5

Question 60 of 93

60. Question

Which of the following statement is correct?

Mono cropping is the repeated planting of the same crop in the same field year after year.
Mixed cropping is the cultivation of two or more than two crops simultaneously on the same land without any pattern

a) 1 alone
b) 2 alone
c) 1, 2
d) None

Question 61 of 93

61. Question

Assertion(A): Crop rotation has many advantages

Reason(R): Many crops like legumes may have positive effects on succeeding crops in the rotation, leading to greater production over all

a) Both (A) and (R) are correct, but (R) does not explain (A)
b) Both (A) and (R) are wrong
c) Both (A) and (R) are correct and (R) explains (A)
d) (A) is Correct and (R) is wrong

Question 62 of 93

62. Question

The leguminous crops should follow non-leguminous to have atmospheric___ to succeeding crops

a) Sulphur
b) Oxygen
c) Nitrogen
d) Carbon

Question 63 of 93

63. Question

Which of the following crops can be intercropped?

1.Rice

2. Maize

3. Black gram

4. Urad gram

a) 1, 2
b) 1, 3
c) 2, 3
d) 1, 4

Question 64 of 93

64. Question

_____ plants have symbiotic relation with the Rhizobium bacteria found in their root

a) Leguminous
b) Non- leguminous
c) Both a and b
d) None

Question 65 of 93

65. Question

Which of the following are included in legumes?

1. Beans

2. Peanut

3. Carrot

a) 1, 2
b) 1, 3
c) 2, 3
d) All the above

Question 66 of 93

66. Question

Which of the following statement is correct?

1. Seed bank is a place where seeds are stored in order to preserve genetic diversity

2. Seeds may be viable for only hundred years

3. Seed banks are like seed libraries that contains valuable information about evolution strategies of plants

a) 1, 2
b) 1, 3
c) 2, 3
d) All the above

Question 67 of 93

67. Question

Royal botanical garden at____ started collecting seeds formally as seed bank

a) Bombay
b) Kolkata
c) Cochin
d) Poona

Question 68 of 93

68. Question

Navadanya seed bank, a non-governmental organization located in____

a) Kolkata
b) Delhi
c) Chennai
d) Poona

Question 69 of 93

69. Question

Acharya Jagadish Chandra Bose Indian Botanic Garden located in____

a) Kolkata
b) Delhi
c) Chennai
d) Poona

Question 70 of 93

70. Question

Which of the following statement is correct?

Seed balls are a mixture of soil, compost and plant seeds.
Seed balls are prepared by nongovernment organization and enthusiastic school children to grow tree for ecosystem restoration.
The concept of seed ball has potential to increase tree cover and also to improve the awareness among the people about conserving plants

a) 1, 2
b) 1, 3
c) 2, 3
d) All the above

Question 71 of 93

71. Question

_____ are also called organic seeds.

a) Seed balls
b) Heirloom seed
c) Both a and b
d) Either a or b

Question 72 of 93

72. Question

Assertion(A): An heirloom seed is the seed of plant that has been carefully cultivated and passed

down through many generations

Reason(A): Heirloom seed are harvested, dried and stored so that one can replant them in the

following season

a) Both (A) and (R) are correct, but (R) does not explain (A)
b) Both (A) and (R) are wrong
c) Both (A) and (R) are correct and (R) explains (A)
d) (A) is Correct and (R) is wrong

Question 73 of 93

73. Question

73. Which of the following statement is correct?

The goal of preserving heirloom seed is to prevent any type of change due to outside influence
Synthetic fertilizers, herbicides or pesticides are used for organic seeds

a) 1 alone
b) 2 alone
c) 1, 2
d) None

Question 74 of 93

74. Question

____ is a species or group of species whose function reveals the qualitative status of environment.

a) Bio- indicator
b) Bio-degradent
c) Bio-fertilizers
d) All the above

Question 75 of 93

75. Question

Assertion(A): Biological indicators are used to document and understand changes in earth’s living systems especially changes caused by the activities of an expanding human population

Reason(R): Bio-indicators of soil health give us information about soil structure, development,

nutrient storage and biological activities.

a) Both (A) and (R) are correct, but (R) does not explain (A)
b) Both (A) and (R) are wrong
c) Both (A) and (R) are correct and (R) explains (A)
d) (A) is Correct and (R) is wrong

Question 76 of 93

76. Question

____ is a natural bio-indicator of climate change and air pollution effect.

a) Weed
b) Cuscutta
c) Lichen
d) None

Question 77 of 93

77. Question

Assertion(A): Lichen gives information about changes in climate, air quality and biological process.

Reason(R): Lichen is a sensitive environmental parameter like temperature humidity, wind and air pollutants.

a) Both (A) and (R) are correct, but (R) does not explain (A)
b) Both (A) and (R) are wrong
c) Both (A) and (R) are correct and (R) explains (A)
d) (A) is Correct and (R) is wrong

Question 78 of 93

78. Question

____ is a national institute for agricultural research, education and extension.

a) ICAR
b) IARI
c) DRDO
d) FAO

Question 79 of 93

79. Question

79. Which of the following statement about IARI is correct?

It is commonly known as the Pusa Institute
It is financed and administrated by the ICAR
This was responsible for research leading to the green revolution in India during 1950s

a) 1, 2
b) 1, 3
c) 2, 3
d) All the above

Question 80 of 93

80. Question

The Indian Council of Agricultural Research is an_____ body

a) Constitutional
b) Autonomous
c) Statutory
d) NGO

Question 81 of 93

81. Question

Who serves as the president of ICAR?

a) Prime Minister
b) Union minister of Agriculture
c) President of India
d) Vice President

Question 82 of 93

82. Question

82. Which of the following statement is incorrect?

Plant shows quick response to the nutrients applied by foliar feedings.
The efficiency of nutrients uptake is considered to be 18-19 folds higher when nutrients are applied to the leaves, when compared with nutrients applied to soil

a) 1 alone
b) 2 alone
c) 1, 2
d) None

Question 83 of 93

83. Question

Which of the following is not a effective microorganism?

a) Lactic acid bacteria
b) Yeast
c) Vibrio Cholera
d) Actinomycetes

Question 84 of 93

84. Question

84. Which of the following statement is correct?

Vermiwash is a liquid that is collected after the passage of water though a column of worm action
Vermi-wash is used as a foliar spray for crops.

a) 1 alone
b) 2 alone
c) 1, 2
d) None

Question 85 of 93

85. Question

Which of the following is not included in Panchgavya?

a) Ghee
b) Cow dung
c) Cow urine
d) None

Question 86 of 93

86. Question

86. Which of the following statement is incorrect?

Panchgavya has the potential to play the role of promoting growth and providing immunity booster
It can be prepared by the farmers themselves with the materials available on the farm.
Pachgavya can be used for seed treatment also

a) 1, 3
b) 2 alone
c) 3 alone
d) None

Question 87 of 93

87. Question

Which of the following can be controlled by Biocontrol Methods?

a) Insects
b) Mites
c) Weed
d) All the above

Question 88 of 93

88. Question

The black kneel capsid eats more than____ fruits

a) 1000
b) 100
c) 500
d) 300

Question 89 of 93

89. Question

89. Which of the following statement is correct?

Bio-pesticides are non-living organism or their derived parts which are used as biocontrol agents to protect crops against insect pests.
Bio-pesticides are of different types based on their origin
Entomopathegenic viruses, bacteria insecticides, particularly bacillus thuringiensis, entamofungal pathogens, protozoans and insect parasitic nematodes have been found to control important pests which affect crops.

a) 1, 2
b) 1, 3
c) 2, 3
d) All the above

Question 90 of 93

90. Question

____ is a fungus used as a biological pesticide.

a) Bacillus thuringiensis
b) Trichodermaviride
c) Vibrio cholera
d) None

Question 91 of 93

91. Question

91._____ is effectively used to control the pest Lepidoptera that attack cotton, maize plants.

a) Bacillus thuringiensis
b) Trichodermaviride
c) Vibrio cholera
d) None

Question 92 of 93

92. Question

Compound Azadiractin obtained from seeds of____ serves as a good insect-repellant

a) Almond
b) Neem
c) Palm
d) Mango

Question 93 of 93

93. Question

_____ involves in nitrogen fixation along with photosynthesis.

a) Anabeana
b) Nostoc
c) Azosprillum
d) Both a and b

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