___________ is obtained by evaporation of sea.
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The salt concentration (measured as salinity in parts per thousand), is _______ % in sea.
National Income of India is compiled by
An object travels 24 m in 3 s and then another 15 m in 2 s. What is the average speed of the object?
If the diameter of a sphere is 14 cm, then what is the surface area (in sq.cm) of the sphere?
Who discovered Insulin?
Lion, Leopard and Tiger are all species of which genus?
Ustad Mansur was a famous painter of which Mughal ruler's regime?