The solid part of the earth is called
Which of the following is mostly used as a drinking water source by us?
Which of the following does not cause depletion in the water table of a place?
The water table of a place depends on the rainfall and water seepage.
Freshwater for human use on earth is
The percentage of water in human body is
Which of the following convert the dead plants and animals to humus?
Plants and animals help in maintaining the balance of
Quinine is obtained from
What is the major source of water in northernmost region of the word ?
Natural vegetation grows without
Which one of the following is not a forest product?
The water table of a place
Which of the following is the most important factor in balancing the amount of fresh water on earth?
In the sewage treatment plant, which one of the following separate large solids such as leaves, rags, plastic etc?
In which of the following tanks aerobic bacteria breaks down organic waste present in sewage?