Natural Resources Test

Natural Resources

This is Natural Resources Test-01 for CBSE class 09 Science.. There are 15 questions in this test with each question having around four answer choices.

Questions & Answers

1
Which of the following factor don’t influences movements of Air?
  • A
    Vaporization and condensation of water vapors
  • B
    Rotation of earth
  • C
    All of these
    Correct
  • D
    Topography over which the wind passes.
2
Which of the following planet have an atmosphere?
  • A
    Mars
  • B
    Earth
  • C
    Venus
  • D
    All of these
    Correct
3
The major component of the atmosphere in Venus and Mars planet is-
  • A
    \(\;{{\text{N}}_{\text{2}}}\)
  • B
    \({\text{C}}{{\text{O}}_{{\text{2 }}}}\)
    Correct
  • C
    \({{\text{O}}_{\text{2}}}{\text{ }}\)
  • D
    He
4
The two forms of oxygen found in the atmosphere are-
  • A
    Water & ozone
  • B
    Water & carbon-dioxide
  • C
    Ozone & oxygen
    Correct
  • D
    Water & oxygen
5
Name two biologically important compounds that contain both oxygen and nitrogen.
  • A
    Fats, Carbohydrate
  • B
    Carbohydrate, nucleic acid
  • C
    Protein, Carbohydrate
  • D
    Protein, nucleic acid.
    Correct
6
If there were no atmosphere surround the earth, then the temperature of the earth will-
  • A
    Increases
  • B
    Remains unaffected
  • C
    Decreases
  • D
    Increases during day decreases during night
    Correct
7
Where is the major part of fresh water hound up?
  • A
    Ice caps
  • B
    None of these
  • C
    Both a and b
    Correct
  • D
    Glacier
8
Rise in temperature of water due to addition of hot water into it is known as
  • A
    Water pollution
  • B
    Thermal pollution
    Correct
  • C
    Soil pollution
  • D
    Air pollution
9
Percentage of total water found as fresh water is
  • A
    16%
  • B
    46%
  • C
    2.5%
    Correct
  • D
    32%
10
Which of the following has the smallest soil particles?
  • A
    Loam
  • B
    Clay
    Correct
  • C
    Silt
  • D
    Sand
11
Soil erosion can be prevented by
  • A
    Wind screen alone
  • B
    Checking movements of animals
  • C
    Restricted human activity
  • D
    Good plant cover
    Correct
12
Wind causes weathering of rocks through
  • A
    Mechanical forces
  • B
    Abrasion
    Correct
  • C
    Chemical changes
  • D
    Frost action
13
The kind of soil water most useful to plants is
  • A
    Capillary water
    Correct
  • B
    Hygroscopic
  • C
    Distilled water
  • D
    Gravitational water
14
Which of the following factors promote soil erosion?
  • A
    All of these
    Correct
  • B
    Clean Tilling
  • C
    Scraping
  • D
    Falling of trees
15
Top soil contains-
  • A
    Humus & living organisms
  • B
    Humus & soil particles
  • C
    Humus, living organisms & soil particles
    Correct
  • D
    Humus, living organisms & plants