1. Of the following natural phenomena, tell which one known in Sanskrit as ‘deer’s thirst’?

    (A) Rainbow

    (B) Earthshine

    (C) Halo

    (D) Mirage

    Correct Answer

    Answer: Option D

  2. The buoyancy depends on

    (A) The shape of the body

    (B) The mass of the body

    (C) The mass of the liquid displaced

    (D) The depth to which the body is immersed

    Correct Answer

    Answer: Option C

  3. The ozone layer is being destroyed by chlorofluorocarbons. In this regard which does you consider as the most harmful?

    (A) Carbon atom

    (B) Chlorine atom

    (C) Fluorine atom

    (D) The entire compound

    Correct Answer

    Answer: Option B

  4. Venturi tube is used for

    (A) Measuring the intensity of earthquakes

    (B) Measuring specific gravity

    (C) Measuring density

    (D) Measuring the flow of a fluid

    Correct Answer

    Answer: Option D

  5. The ozone layer restricts

    (A) Visible light

    (B) Infrared radiation

    (C) X-rays and gamma rays

    (D) Ultraviolet radiation

    Correct Answer

    Answer: Option D

  6. Free surface of a liquid behaves like a sheet and tends to contract to the smallest possible area due to the

    (A) Force of adhesion

    (B) Force of friction

    (C) Centrifugal force

    (D) Force of cohesion

    Correct Answer

    Answer: Option D

  7. The Halley’s Comet will be visible again in the year
    (A) 2066 A.D.
    (B) 2064 A.D.

    (C) 2062 A.D.

    (D) 2060 A.D.

    Correct Answer

    Answer: Option C

  8. The summer solstice occurs in the Northern hemisphere

    (A) March 21

    (B) April 21

    (C) May 21

    (D) June 21

    Correct Answer

    Answer: Option D

  9. The ozone layer of the earth is useful for living beings because

    (A) It serves as the source of oxygen by decomposing air

    (B) It maintains the nitrogen cycle of the earth

    (C) It maintains the temperature of the earth

    (D) It protects them from excessive ultraviolet rays of the sun

    Correct Answer

    Answer: Option D

  10. When the Sun reaches its maximum distance from the equator, it is known as

    (A) Solstice

    (B) Eclipse

    (C) Equinox

    (D) Sidereal Day

    Correct Answer

    Answer: Option A