Which stone floats on water
According to many, including the Guinness Book of World Record,________is the world’s rarest mineral
Which of the following disease is spread by Fleas
A dolphin perceives its environment by the sense of__________
The Temperature of the surface of Sun is_______
Mass of Earth is___________
How many layers of Atmosphere
Density of Water is_________
Density of Milk is________
Which blood cells are called ‘Soldiers’ of the body