Question

Explain under what conditions is burning desirable and undesirable ?

Answer 1

Answer:

For example-the burning of a factory, flooding of a river, rotting of food stuff, etc. A change may be desirable for someone and undesirable for others. The cutting of trees may be desirable for someone who needs wood but undesirable for others because it disturbs the balance in nature.

Answer 2

ANSWER.

The burning of fuels like wood, coal or petrol is both desirable and undesirable change. The burning of fuels produce heat which is desirable but the burning also produce smoke. It pollutes the atmosphere and is undesirable