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As a vegetable preservative poly______ foam is used.
  1. Uthane
  2. Uriathenes
  3. Urathanes
  4. Urethanes

Q2. The heating elements of electric iron and toaster are made of:

  1. Metals
  2. Alloys
  3. Glass
  4. Hard rubber
Correct Answer

Q3. Who is known as the father of Modern Chemistry?

  1. Kolvey
  2. Wholer
  3. Leviatiae
  4. Pasteur
Correct Answer

Q4. The magnetic field produced by a current carrying solenoid is similar to the magnetic field produced by a:

  1. Bar magnet
  2. Ring magnet
  3. Rod magnet
  4. Horse shoe magnet
Correct Answer

Q5. The cycling at various scales, of minerals and compounds through the ecosystem is:

  1. Aboitic (Non-living) Components
  2. Biogeochemical Cycles
  3. Carbon & Oxygen Cycles
  4. Nitrogen Cycles
Correct Answer

Q6. Which layer of the atmosphere is also called Ozonosphere?

  1. Troposphere
  2. Stratosphere
  3. Mesosphere
  4. Exosphere
Correct Answer

Q7. Vaccination was started by.......

  1. Jonas E. Salk
  2. Paul Muller
  3. Edward Jenner
  4. Robert Frost
Correct Answer

Q8. The mass number of an atom is:

  1. Number of nucleons in the nucleus
  2. Number of protons in the nucleus
  3. Number of neutrons in the nucleus
  4. None of these
Correct Answer

Q9. Which of following pairs is/are correct?

  1. Primary Consumers - Cow, insects and grasshoppers
  2. Secondary Consumers – Frogs and lizards
  3. Tertiary Consumers – Tiger, lion, leopard and vultures
  4. None of the above/ More than the above
Correct Answer

Q10. Hepatitis is a general term for a disease that is caused by:

  1. Viruses
  2. Bacteria
  3. Parasites
  4. All the above
Correct Answer

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