Class 07 Social Science Inside Our Earth CBSE Questions & Answers

Class 7 · Social Science Inside Our Earth

This is Social Science class 07 Social Science Inside our Earth CBSE Questions & Answers. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
It lies below the mantle and around the centre of the earth
  • A
    Fossils
  • B
    Crust
  • C
    Core
    Correct
  • D
    Mantle
2
Which of the following is false regarding Mantle
  • A
    It is made up of dense and heavy material
  • B
    It lies between crust and core
  • C
    The uppermost layer over the earth?s surface
    Correct
  • D
    It extends up to a depth of 2900 km
3
They have a very fine grained structure
  • A
    Extrusive igneous rocks
    Correct
  • B
    Intrusive sedimentary rocks
  • C
    Intrusive igneous rocks
  • D
    Extrusive sedimentary rocks
4
The deepest mine in the world, is in
  • A
    South Africa
    Correct
  • B
    South America
  • C
    North America
  • D
    North Africa
5
Why igneous rocks are called basic rocks
  • A
    These are found on the base of the earth
  • B
    They have basic property
  • C
    These are first to be formed
    Correct
  • D
    They have basic minerals compositions
6
Which of the following is false regarding the earth
  • A
    It is dynamic do not change from inside
  • B
    It is dynamic keeps on changing from inside and outside
    Correct
  • C
    It is dynamic keeps on changing inside only
  • D
    It is dynamic keeps on changing outside only
7
It is about ___ km. on the continental masses and only ___ km on the ocean floors
  • A
    40,15
  • B
    25,10
  • C
    35,5
    Correct
  • D
    30,5
8
The main mineral constituents of the continental mass is called
  • A
    nife
  • B
    sima
  • C
    sial
    Correct
  • D
    cial
9
sima stands for
  • A
    silica and alumina
  • B
    silica and magnesium
    Correct
  • C
    silica and magnet
  • D
    silica and magma
10
Just beneath the crust is the mantle which extends up to a depth of
  • A
    2800 km
  • B
    3000 km
  • C
    2900 km
    Correct
  • D
    3100 km
11
The ____ forms only 0.5 per cent of the volume of the earth, 16 per cent consists of the mantle and 83 per cent makes the core.
  • A
    Crust, Core, Mantle
  • B
    Core, Mantle, Crust
  • C
    Crust, Mantle, Core
    Correct
  • D
    Crust, Core, Mantle
12
Inner most layer crust is made up of
  • A
    Sial
  • B
    Sima
  • C
    Nife
    Correct
  • D
    Sina
13
Any natural mass of mineral matter that makes up the earth?s crust is called
  • A
    Minerals
  • B
    Crust
  • C
    Rock
    Correct
  • D
    Core
14
Igneous word is taken from
  • A
    French
  • B
    Latin
    Correct
  • C
    Greek
  • D
    Spanish
15
Which of the following is not the character of igneous rocks
  • A
    These are hard and compact
  • B
    These do not occur in strata
  • C
    They do not allow water to percolate
  • D
    They have remains of animals and plants
    Correct