Class 07 Social Science Our Changing Earth CBSE Questions & Answers

Class 7 · Social Science Our Changing Earth

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

Questions & Answers

1
Zambia is in
  • A
    Africa
    Correct
  • B
    Europe
  • C
    America
  • D
    Australia
2
Lithospheric plates move around very slowly ? just a few each _____ year
  • A
    Metres
  • B
    Kilometres
  • C
    Millimetres
    Correct
  • D
    Centimetres
3
Which of the following is false regarding Lithospheric plates
  • A
    Lithospheric plates moves because of the movement of the molten magma inside the earth.
  • B
    The molten magma inside the earth moves in a circular manner
  • C
    The Hydrosphere is broken into a number of plates known as the Lithospheric plates.
    Correct
  • D
    These plates move around very slowly ? just a few millimetres each year.
4
Exogenic forces
  • A
    The forces that work inside the earth
  • B
    The forces that work on the atmosphere of the earth only
  • C
    The forces that work on the land of the earth only
  • D
    The forces that work on the surface of the earth
    Correct
5
Building mountain is a
  • A
    Diastrophic forces
    Correct
  • B
    Sudden force
  • C
    Depositional force
  • D
    Erosional force
6
The earth?s crust consists of several large and some small, rigid, irregularly shaped plates (slabs) which carry continents and the ocean floor.
  • A
    Sudden forces
  • B
    Diastrophic plates
  • C
    Lithospheric plates
    Correct
  • D
    Erosional plates
7
There are three types of earthquake waves:
  • A
    P wave, S wave, T wave
  • B
    P wave, M wave, L wave
  • C
    P wave, Q wave, R wave
  • D
    P wave, S wave, L wave
    Correct
8
Which forces sometimes produce sudden movements and at the other times produce slow movements
  • A
    Exogenic
  • B
    Average
  • C
    External
  • D
    Endogenic
    Correct
9
In the word Endogenic, ?genic? means
  • A
    Origin
    Correct
  • B
    Surface
  • C
    Earth
  • D
    Inside
10
Greatest damage during earthquake is usually closest to the ___ and the strength of the earthquake decreases away from the centre
  • A
    Focus
  • B
    Epicentre
    Correct
  • C
    Vent
  • D
    Land
11
A massive earthquake measuring ___ on Richter scale hit Bhuj Town
  • A
    6.7
  • B
    6.8
  • C
    6.6
  • D
    6.9
    Correct
12
The magnitude of the earthquake is measured on the
  • A
    Seismograph
  • B
    Richter scale
    Correct
  • C
    Thermometer
  • D
    Laboratory
13
An earthquake of ___ can be felt only a little. An earthquake over 5.0 can cause damage from things falling. A _____ magnitude is considered very strong
  • A
    2.0 or less , 6.0 or higher
    Correct
  • B
    2.0 or higher , 6.0 or less
  • C
    6.0 or higher , 2.0 or less
  • D
    6.0 or less , 2.0 or higher
14
Weathering
  • A
    It is the wearing away of the landscape by ice
  • B
    It is the wearing away of the landscape by wind
  • C
    It is the wearing away of the landscape water
  • D
    It is the breaking up of the rocks on the earth?s surface
    Correct
15
The process of erosion and deposition create
  • A
    Different landforms interior of the earth
  • B
    Same landforms interior of the earth
  • C
    Same landforms on the surface of the earth
  • D
    Different landforms on the surface of the earth
    Correct