1-One barrel = 159 litres
2- RBCs are formed in bone marrow.
3-Robert Hooke coined the term ‘cell’.
4-Volta invented electric battery.
5-Blue Whale is the largest mammal.
6-Rayon fibre is made up of cellulose.
7-Pure gold is of 24 carat; % of gold in 18 carat gold is 75
8-Vertebrae has 39 bones; highest in the human body.
9-Forest Survey of India is located at Dehradun.
10- Echo is caused due to the reflection of sound.
11-CPU is called as the brain of the computer.
12-Hydrogen bomb works on the principle of nuclear fusion.
13-In vacuum speed of light is the highest.
14-The number of major ports in India is 13.
15-Paraffin is a by-product of petroleum
16-Ahemedabad city is called the ‘Bolfon of the east
17-Coimbatore city is called the Manchester of South India
18-The Matalia multipurpose project is located in Uttar Pradesh
19-The largest shipyard of India is located at Kochi.
20- Jharia coalfield is the largest producer in India.