General Science Questions

Agriculture would be a good example of a purely competitive industry.

Thermoset, or thermosetting, plastics are synthetic materials that strengthen during being heated, but cannot be successfully remouldedor reheated after their initial heat-forming. This contrasts withthermoplastics, which soften when heated and harden and strengthen after cooling. Thermoplastics can be heated, shaped and cooled as often as necessary without causing a chemical change, while thermosetting plastics will burn when heated after the initial moulding.

A trampoline is a sheet or web supported by springs in a metal frame and is used as spring board.

We know that, 

Earth is known as Watery planet.

Neptune is known as Blue planet. 

Air contains water in a gaseous form called water vapour.

Demography is the scientific study of Birth and death, The well being and the Growth of population. In brief, it is the study of human populations based on their size, composition and distribution across space – and the process through which populations change.