Q: 12681 Change of state form liquid to solid is _________?

  1. 
    Boiling
  2. 
    Freezing
  3. 
    Evaporation
  4. 
    None of these

Q: 12682 Gamma rays have greatest similarity with?

  1. 
    a-rays
  2. 
    X-rays
  3. 
    b-rays
  4. 
    U.V.-rays

Q: 12683 Persistance of vision is the principle behind?

  1. 
    Camera
  2. 
    Spectroscope
  3. 
    Cinema
  4. 
    Periscope

Q: 12684 Unit of force in (SI) is __________?

  1. 
    Meter
  2. 
    Newton
  3. 
    Kilogram
  4. 
    None of these

Q: 12685 The Quantity of matter present in an object is its ________?

  1. 
    Density
  2. 
    Weight
  3. 
    Mass
  4. 
    None of these

Q: 12686 The _____ is the largest natural source of light?

  1. 
    Sun
  2. 
    Moon
  3. 
    Star
  4. 
    None of these

Q: 12687 The Earth behaves like a magnet with ______ poles?

  1. 
    Four
  2. 
    Three
  3. 
    Two
  4. 
    None of these

Q: 12688 The process in which seed grows in to a new plant is called ______?

  1. 
    Fertilization
  2. 
    Germination
  3. 
    Vernalization
  4. 
    None of these

Q: 12689 The Microbes used in baking industry is ________?

  1. 
    Penicillin
  2. 
    Yeast
  3. 
    Water
  4. 
    None of these

Q: 12690 _______________ causes biomagnification problem in the Ecosystem.

  1. 
    Lead
  2. 
    Mercury
  3. 
    Chromium
  4. 
    Copper

Q: 12691 What would you find in a Vivarium?

  1. 
    microorganisms
  2. 
    Humans
  3. 
    None of these

Q: 12692 The light rays used for eliminating bacteria?

  1. 
    X-rays
  2. 
    infrared rays
  3. 
    microwave radiation
  4. 
    ultra-violet radiation

Q: 12693 The term “white coal” sometimes referred to which of the following?

  1. 
    Geothermal Electricity
  2. 
    Wind Energy
  3. 
    Hydroelectricity
  4. 
    Biomass Energy

Q: 12694 Who was the first to measure the earth';s circumference?

  1. 
    Eratosthenes
  2. 
    Galileo
  3. 
    Copenicus
  4. 
    Ptolemy

Q: 12695 The most important function of perspiration is?

  1. 
    Get rid of body waste
  2. 
    Regulate body temperature
  3. 
    Regulate body waste
  4. 
    Lubricate the skin

Q: 12696 Which one of the following clouds is found at the highest level in the atmospher?

  1. 
    Stratus
  2. 
    Cumulus
  3. 
    Stratocumulus
  4. 
    Cirrus

Q: 12697 Which of the following in human body is involved in controlling blood sugar level?

  1. 
    Pitutary glands
  2. 
    Islets of Langerhans
  3. 
    Hypothalamus
  4. 
    Spleen

Q: 12698 What is the number of known crystalline phases of water ________?

  1. 
    4
  2. 
    8
  3. 
    17
  4. 
    18

Q: 12699 Saffron is obtained from which among the following parts of the plant ________?

  1. 
    Stamen
  2. 
    Pollen

Q: 12700 Which one of the following is not a plant product?

  1. 
    Caffeine
  2. 
    Nicotine
  3. 
    Piperine
  4. 
    Saccharin