The area around the earth where life activities go on is ...
The area around the earth where life activities go on is referred to as
biosphere
lithosphere
habitat
ecosystem
Correct answer is A
No explanation has been provided for this answer.
The DNA molecule is a chain of repeating ...
Which of the following mineral salts is a trace element? ...
The nitrogenous substance that is excreted by birds in order to conserve water is ...
One of the ecological conditions which favour the spread of malaria is ...
Which of the following does not illustrate adaptation to the environment? ...
The by-product of photosynthesis is ...