Question

What is often cut, collected and burnt to produce heat and light?

Answer 1

Answer:

We use different kinds of fuel for various purposes at home, in industry and for running automobiles.Some of the fuels are like cowdung, wood, coal, charcoal, petrol, diesel, compressed natural gas (CNG), etc.

You are familiar with the burning of a candle. Note the difference between the burning of a candle and the burning of a fuel like coal. May be you were able to guess right: candle burns with a flame whereas coal does not. Similarly, you will find many other materials burning without a flame. Let us study the chemical process of burning and the types of flame produced during this process.

Answer 2

Answer:

woods are often cut, collect and burnt to produce heat and light