Class 7 Soil CBSE Questions & Answers

Class 7 · Soil

This is Science Class 7 Soil CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
The uppermost fertile layer of earth crest is called
  • A
    Soil
    Correct
  • B
    Element
  • C
    Metal
  • D
    Humus
2
The water holding capacity is the highest in
  • A
    Sandy soil
  • B
    Clayey soil
    Correct
  • C
    Loamy soil
  • D
    Mixture of sand and loam.
3
In addition to the rock particles, the soil contains
  • A
    Minerals, organic matter, air and water
    Correct
  • B
    Air and water
  • C
    Wood
  • D
    Water and plant
4
Which layer is formed of decayed organic matter?
  • A
    Minerals
  • B
    Humus
    Correct
  • C
    Air
  • D
    Clay
5
Soil erosion is a process of
  • A
    Soil formation
  • B
    Soil pollution
  • C
    Weathering
  • D
    Removal of top soil
    Correct
6
-------------- are soils in which more than half of the parent mineral matter is volcanic ash and appear very dark in colour.
  • A
    Volcanic soil
    Correct
  • B
    Alluvial soil
  • C
    Desert soil
  • D
    Clayey soil
7
Breaking down of big pieces of rock into smaller pieces is called
  • A
    Soiling
  • B
    Mounding
  • C
    Weathering
    Correct
  • D
    Curving
8
Which soil is made from basaltic rock?
  • A
    Black soil
    Correct
  • B
    Desert soil
  • C
    Red soil
  • D
    Alluvial soil
9
Soil best suited for cultivation of wheat, rice and sugarcane is
  • A
    Mountain soil
  • B
    Alluvial soil
    Correct
  • C
    None of these
  • D
    Laterite soil
10
Red soil In which horizon of soil weathering is taking place?
  • A
    B-horizon
  • B
    A-horizon
  • C
    C-horizon
    Correct
  • D
    O-horizon.
11
Which one is not a natural force that causes weathering of rock?
  • A
    Wind
  • B
    Glacier.
  • C
    Water
  • D
    Earthquake
    Correct
12
Clayey particles are of size
  • A
    Less than 0.4 mm
  • B
    More than 0.2 mm
  • C
    Less than 0.2 mm
    Correct
  • D
    More than o.4 mm
13
‘Khadar’ is another name of
  • A
    Desert soil
  • B
    Black soil
  • C
    Alluvial soil
    Correct
  • D
    Red soil
14
Coffee cultivation of is best suited in
  • A
    Alluvial soil
  • B
    Red soil
  • C
    Black soil
  • D
    Laterite soil
    Correct
15
Collective name of layers of soil is
  • A
    Soil texture
  • B
    Soil rate
  • C
    Soil profile
    Correct
  • D
    Soil layer