Question

(iv) Due to dust raised from the quarrying act
4. Distinguish between the followings:
(1) Conventional and non-conventional sources of energy
(ii) Biogas and natural gas
(i) Ferrous and non-ferrous minerals
(iv) Metallic and non-metallic minerals
Answers:
(i) Distinction between Conventional and Non-conv
Conventional Sources of Energy
Non-conven
1. Conventional sources of energy are those
sources which have been in use from time-
immemorial
2. They are exhaustible except water
1. Non-convent
generally bee​

Answer 1

Answer:

convectional source of energy are the natural energy resources which are present in a limited quantify and are being used for a long time.

non- convectional sources of energy sources which are continuously replenished by natural process

• biogas is a mixture of methane and carbon dioxide and produces a huge amount of organic manure each year .
• whereas , natural gas is extracted with petroleum. deposits when crude oil is brought to the surface

Answer 2

Answer:

Biogas

Explanation:

1. Biogas is obtained by anarobic fermentation animal waste like, animal dung and plant wate in the presence of water.
2. Biogas burns without smoke and doesn't cause air pollution.
3. Biogas has large callorific value .
4. Biogas is clean and convenient to use fuel.

Natural Gas

1. Natural Gas consist of methane, ethane and propane
2. Natural Gas is used as domestic fuel
3. It is complete fuel and can be used directly in homes and industries.
4. Natural Gas is smokeless fuel and cause no pollution and leave no residue after burning .