Mention the advantage of biogas.
Biogas is an excellent fuel for cooking and lighting and produces huge amount of organic manure each year.
Tips: -
V. Imp.
Which one of the following is a leading producer of copper in the world?
Which one of the following practices will Not conserve LPG in your kitchen.
Give reasons.
Environmental aspects must be carefully looked into before building huge dams.
Give reasons.
Most industries are concentrated around coal mines.
Give reasons.
Petroleum is referred to as 'black gold'.
Give reasons.
Quarrying can become a major environmental concern.
Distinguish between the fallowings.
(i) Conventional and non-conventional sources of energy.
Distinguish between the fallowings.
Biogas and natural gas.
Distinguish between the fallowings.
Ferrous and nonferrous minerals
Distinguish between the fallowings.
Metallic and nonmetallic minerals.
Mock Test Series
