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Question 1:

Which of the following is the S.I. unit of acceleration?

Question 2:

A permanent magnet repels only -

Question 3:

Find the energy in kWh consumed in 10 hours by four devices of power 500 W each. 

Question 4:

............ Play the game by generating ultrasound.

Question 5:

One way of dating fossils is by detecting the ratio of different _______of the same element in the fossil material.

Question 6:

Water can be conserved by 

  1. Constructing dams and reservoirs
  2. Adopting water harvesting techniques
  3. Cutting more trees
  4. By using drip irrigation method

Question 7:

Which of the following metals float on water?

  1. Calcium
  2. Magnesium
  3. Zinc
  4. Lead

Question 8:

Which of the following is the chemical name of Vitamin B-12?

Question 9:

Which of the following organs secretes hydrochloric acid that helps our body in killing pathogenic bacteria?

Question 10:

______ is generally called as milk sugar as it is found in milk.