Science important {previous years} Questions 1. Raw aluminum | Parmar Defence

Science important {previous years} Questions

1. Raw aluminum is known as pyrite

2. The pigment found in human skin is Melanin

3. Pellagra disease is caused by persistent deficiency of niacin nutrient substance.

4. Flu virus is caused by

5. The red color in fireworks is due to strontium

6. Echo is caused by reflection of sound

7. The growth of beard and mustache is related to the hormone testosterone.

8. World Forest Day is celebrated on 21 March

9. The boiling point of pure water will be 212 Fahrenheit on the Fahrenheit scale.

10. Salt is prepared from sea water by evaporation method.