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Know about science

Discover our science. 11 Questions.

 
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Linu
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1

Why is chlorine added to water?

  • To add taste
  • To add colour
  • To kill germs

2

What is oesophagus also known as?

  • Food pipe
  • Water pipe
  • Wind pipe

3

What kind of teeth are sharp and pointed?

  • Incisors
  • Premolars
  • Canines

4

What are the muscles of the heart called?

  • Cardiac muscles
  • Pumping muscles
  • Contracting muscles

5

What is the cause of unequal days and nights?

  • The revolution of earth
  • The rotation of earth
  • None of these

6

When does solubility in solute increase?

  • Decreases in temperature
  • Increases in temperature
  • Addition of more solute

7

Which among the following is not soluble in water?

  • Common salt
  • Sand
  • Sugar

8

What is the meaning of supplementary foods?

  • Proteins
  • Vitamins
  • Carbohydrates

9

Which is the most useful microbe to the man?

  • Bacteria
  • Protozoa
  • Fungi

10

What is marsh gas also known as?

  • Methane
  • Butane
  • Ethane

11

What is the reason of anemia?

  • Lack of calcium
  • Lack of iron
  • Lack of iodine

 

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