Science day

Which day is celebrated as national science day?

• February 20

• February 24

• February 28

• February 23

The concept of gravity was discovered by which famous physicist?

• C V Raman

• Sir Isaac Newton

• Einstein

• Kepler

In which year C. V. Raman was awarded the Bharat Ratna ?

• 1930

• 1928

• 1954

• 1945

Which is the most abundant gas in the earth's atmosphere?

• Carbon Dioxide

• Oxygen

• Nitrogen

• Argon

Which rock is also called volcanic glass?

• Pumice

• Obsidian

• Granite

• Basalt