Class 07 Social Science Air CBSE Questions & Answers

Class 7 · Social Science Air

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

Questions & Answers

1
The standard unit of measuring temperature is degree
  • A
    Kelvin
  • B
    Celsius
    Correct
  • C
    Fahrenheit
  • D
    Meter
2
When water evaporates from land and different water bodies, it becomes
  • A
    Water vapour
    Correct
  • B
    Rain
  • C
    Ice
  • D
    Snow
3
On the Celsius scale the water freezes at ___ and boils at ___
  • A
    100\(^\circ {\text{C}}\), 0\(^\circ {\text{C}}\)
  • B
    10\(^\circ {\text{C}}\), 90\(^\circ {\text{C}}\)
  • C
    32\(^\circ {\text{C}}\), 232\(^\circ {\text{C}}\)
  • D
    0\(^\circ {\text{C}}\), 100\(^\circ {\text{C}}\)
    Correct
4
As we ___ the layers of atmosphere, the pressure ___
  • A
    go down, falls
  • B
    go up, rise
  • C
    go down, does not change
  • D
    go up, falls
    Correct
5
The air pressure is highest at
  • A
    Plateau level
  • B
    Sea level
    Correct
  • C
    Plain level
  • D
    Mountain level
6
___ Pressure is associated with cloudy skies and wet weather and __ pressure is associated with clear and sunny skies.
  • A
    Low, Normal
  • B
    Normal, High
  • C
    Low, High
    Correct
  • D
    High, also High
7
A wind is named after the
  • A
    Place from which it blow
  • B
    Area it cover
  • C
    Direction from which it blows
    Correct
  • D
    Weight it has
8
The movement of air from high pressure area to low pressure areas is called
  • A
    Season
  • B
    Weather
  • C
    Climate
  • D
    Wind
    Correct
9
Sea breeze and land breeze example of
  • A
    Directional wind
  • B
    Permanent wind
  • C
    Local wind
    Correct
  • D
    Seasonal wind
10
The ___ winds blow constantly throughout the year in a particular direction.
  • A
    Local
  • B
    Seasonal
  • C
    Permanent
    Correct
  • D
    Directional
11
Odisha, located on the
  • A
    Eastern seacoast of India
    Correct
  • B
    Northern seacoast of India
  • C
    Western seacoast of India
  • D
    Southern seacoast of India
12
Which of the following is not the types of rainfall
  • A
    Seasonal rainfall
    Correct
  • B
    Cyclonic rainfall
  • C
    Orographic rainfall
  • D
    Convectional rainfall
13
What is released in the air from the burning of fuels?
  • A
    Argon
  • B
    Helium
  • C
    Nitrogen
  • D
    Carbon di oxide
    Correct
14
Why do astronauts wear special protective space suits because
  • A
    Temperature increase their
  • B
    Air is heavy on moon
  • C
    It is a fashion to wear
  • D
    If they did not wear these space suits the counter pressure exerted by the body of the astronauts would make the blood vessels burst. The astronauts would bleed.
    Correct
15
Carbon dioxide released in the atmosphere creates a
  • A
    Green house effect
    Correct
  • B
    Earth effect
  • C
    Carbon effect
  • D
    Dioxide effect