Question

22 ईंधन से आप क्या समझते है? ईंधन की दो विशेषताएँ को लिखें।
What do you mean by fuel? Write two characteristics of fuel.

23. कोयला का निर्माण कैसे होता है? वर्णन करें। How is coal formed explain.​

Answer 1

Answer:

energy is available to us in forms of fuels and electricity. An easily available substance which produces a large amount of heat on burning in air to moderate rate without leaving any undesirable substance is called fuel.