Tag: science & technology

The radiation in the sunlight that gives us the feeling of hotness is ______.

The energy which is not derived from the sun is ______.

Harmful radiation emitted by the sun is ______.

A substance which produces a lot of heat on burning is called ______.

Fuel formed under the earth's surface by the decomposition of organic matter is called ______.

Which of the following causes the least pollution when burnt?

The main constituent of LPG is ______.

Which of these is not a renewable source of energy?

The radiations absorbed by ozone layer is ______.

The radiations emitted by the sun and responsible for the cause of skin cancer are ______.