A pair of contrasting characters controlling the same trait is called

Iron and manganese present as pollutants in water cannot be removed by_____

The core of the earth is also known as ______

The deficiency of Niacin­a vitamin of B complex group causes the disease _____

Which of the following increases the rate of heart beat?

Which Constitutional Amendment Act deals with the disqualification of MPs and MLAs?

Who was the founder of the Indian Reform Association in 1870?

A drainage pattern where a river is joined by its tributaries approximately at right angles is ____________