Class 8 Crop Production And Management CBSE Questions & Answers

Class 8 · Crop Production And Management

This is Science Class 8 Crop Production and Management CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
Organic farming will use :
  • A
    weedicides
  • B
    chemical fertilizers
  • C
    biological methods
    Correct
  • D
    pesticides
2
Read the following statements:i. Standing crops in the field are treated with chemicals called fumigants. ii. Fumigation kills or repels pests without affecting stored grains.
  • A
    both are correct
  • B
    both are wrong
  • C
    Statement ii) is wrong and i) is correct
  • D
    Statement i) is wrong and ii) is correct
    Correct
3
Pests are organisms that :
  • A
    attack crops in granaries
  • B
    attack crops in the field
  • C
    damage the field crop
  • D
    all of these
    Correct
4
A banana plant is grown by planting vegetative part of it called:
  • A
    biome
  • B
    trichome
  • C
    rhizome
    Correct
  • D
    genome
5
Fields will need less frequent watering in :
  • A
    humid weather
    Correct
  • B
    hot weather
  • C
    dry weather
  • D
    all the above
6
Drip irrigation method :
  • A
    keeps top soil eroded
  • B
    saves water
    Correct
  • C
    all the above
  • D
    causes waterlogging
7
Excessive use of ground water has :
  • A
    increased potable water availability
  • B
    depleted water table
    Correct
  • C
    caused better rains
  • D
    filtered water
8
Overuse of chemical fertilisers has caused :
  • A
    increased soil fertility
  • B
    fall in soil air
  • C
    soil conservation
  • D
    rise in soil salinity
    Correct
9
Maximum plant nutrients are to be found in:
  • A
    bottom layer of soil
  • B
    middle layer of soil
  • C
    top layer of soil
    Correct
  • D
    lower layer of soil
10
Hand weeding method of weed removal is :
  • A
    efficient but laborious
    Correct
  • B
    time consuming but cost effective
  • C
    efficient and non time consuming
  • D
    non efficient but cost effective
11
Broadcasting leads to :
  • A
    unequal distribution and wastage of seeds
    Correct
  • B
    equal distribution of pesticides
  • C
    proper spreading of fertilisers
  • D
    equal distribution and proper use of seeds
12
Seed drill helps into :
  • A
    unequal spacing between seeds
  • B
    irregular spreading of seeds
  • C
    proper & regular spacing between seeds
    Correct
  • D
    proper but irregular spacing between seeds
13
Nowadays seed drills are driven by a:
  • A
    calves
  • B
    tractor
    Correct
  • C
    bullocks
  • D
    truck
14
Read the following :i) Manure is made of cow dung.ii) Manure is considered better than fertiliser.
  • A
    both are correct
    Correct
  • B
    Statement i) is wrong and ii) is correct
  • C
    Statement ii) is wrong and i) is correct
  • D
    both are wrong
15
Which of the following is nutrient specific?
  • A
    manure
  • B
    fertiliser
    Correct
  • C
    both manure and fertiliser
  • D
    only weedicides