1. A stick partially immersed in water looks bent. it is a phenomenon of
    1. reflection
    2. parallax view
    3. refraction

  2. The cloudy nights are warmer because
    1. clouds emit heat rays
    2. lightning produces heat
    3. clouds prevent radiation from earth

  3. Outer space of a glass containing ice water becomes wet because
    1. the air near the glass is cooled
    2. ice water permeates through glass
    3. insects bring water from nearby ponds to cool places

  4. if you weigh 60kg on this earth your weight on the moon will be
    1. 120 kg
    2. 60 kg
    3. 30 kg
    4. 10 kg

  5. The planets on either side of the Earth are
    1. Mercury & Venus
    2. Venus & Saturn
    3. Mars & Jupiter
    4. Mars & Venus

  6. Gasohol is used as fuel for automobiles. it is
    1. Petrol
    2. mixture of alcohol & petrol
    3. LPG
    4. Diesel

  7. Genetic engineering is the term associated with
    1. Human breeding
    2. Chemical engineering
    3. Heavy engineering
    4. Medical treatment

  8. The most abundant element on the earth crust is
    1. Silicon
    2. Aluminium
    3. Calcium
    4. Oxygen

  9. Which of the following is not true regarding stratosphere?
    1. it contains thick layer of Ozone
    2. it absorbs Ultra-violet radiation
    3. it is the lowest layer of atmosphere covering the earth
    4. its thickness is decreasing slowly

  10. 'Acoustics' is a branch of study dealing with
    1. historical remains
    2. shells
    3. Sound