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
Water logging reduces _____ in the spaces between soil particles.
  • A
    nitrates
  • B
    bulk minerals
  • C
    water
  • D
    air
    Correct
2
Stem of crop is cut into small pieces and used as :
  • A
    feeder
  • B
    fodder
    Correct
  • C
    green manure
  • D
    bio fertiliser
3
Wilt is a disease caused in crops by :
  • A
    protozoa
  • B
    bacteria
    Correct
  • C
    virus
  • D
    fungi
4
Combine is a machine used for :
  • A
    irrigating
  • B
    transplanting
  • C
    sowing
  • D
    threshing
    Correct
5
Mixed fertilizers supply :
  • A
    <1 essential elements for plant growth
  • B
    fertiliser + weedicides
  • C
    >1 essential elements for plant growth
    Correct
  • D
    fertiliser + manure
6
In the preparation of vermicompost, the organism added to waste is :
  • A
    grasshopper
  • B
    rodent
  • C
    earthworm
    Correct
  • D
    leech
7
The straw and husk of grains left out after threshing is :
  • A
    chaff
    Correct
  • B
    flour
  • C
    shaft
  • D
    fodder
8
The bacteria living in root nodules of leguminous plants is :
  • A
    Agaricus
  • B
    Azotobacter
  • C
    Rhizopus
  • D
    Rhizobium
    Correct
9
Animals that provide us with milk are commonly called :
  • A
    dairy animals
    Correct
  • B
    milking animals
  • C
    lactic animals
  • D
    diary animals
10
The process of introducing seeds into the soil is called :
  • A
    sowing
    Correct
  • B
    plantation
  • C
    propagating
  • D
    growing
11
Which of the following is a bio fertiliser?
  • A
    mycorrhiza
    Correct
  • B
    urea
  • C
    NPK
  • D
    DAP
12
Flood water standing in the field causes :
  • A
    protection
  • B
    waterlogging
    Correct
  • C
    irrigation
  • D
    transplantation
13
Weedicides when sprayed in the field will destroy :
  • A
    pests
  • B
    germs
  • C
    unwanted plants
    Correct
  • D
    crop plants
14
Soil having big lumps is crushed for :
  • A
    tilling
  • B
    ploughing
  • C
    sowing
  • D
    levelling
    Correct
15
_____ is a common seedless fruit :
  • A
    papaya
  • B
    mango
  • C
    apple
  • D
    banana
    Correct