(c) iron ore
(a) sedimentary rocks
(b) metamorphic rocks
(c) igneous rocks
(d) none of the above
(d) coalAnswer :
(i) (b) bauxite
(ii) (b) mica
(iii) (a) sedimentary rocks
(iv) (c) thorium
(a) ferrous and non-ferrous minerals
Answer : Ferrous minerals are the metallic minerals containing iron. For e.g.- Iron ore, Manganese, Nickel, Cobalt etc.
While non-ferrous minerals are also metallic but they do not contain iron. For e.g.- Manganese, Nickel, Cobalt etc.
(b) conventional and non-conventional sources of energy
Answer : Conventional sources of energy include firewood, cattle dung cake, coal, petroleum, natural gas and electricity (both hydel and thermal).
While non-conventional sources of energy are solar, wind, tidal, geothermal, biogas and atomic energy.
Answer : Mineral can be defined as a homogenous, naturally occurring substance with a definable internal structure. Minerals are found in varied forms in nature, ranging from the hardest diamond to the softest talc.
Answer :: In igneous and metamorphic rocks, minerals can occur in the cracks, crevices, faults or joints. The smaller deposits are called veins and the larger ones are called lodes.
Answer : Mineral deposits form only one percent of the earth's crust. We need to conserve mineral resources because the geological processes of mineral formation are so slow that the rates of replenishment are very small in comparison to the current rate of consumption.
Answer : In India, coal occurs in rock series of two main geological ages, namely Gondwana, a little over 200 million years in age and in tertiary deposits which are only about 55 million years old.
The major resources of Gondwana coal, which are metallurgical coal, are located in Damodar valley (West Bengal-Jharkhand). Jharia, Raniganj, Bokaro are important coalfields. The Godavari, Mahanadi, Son and Wardha valleys also contain coal deposits.
Tertiary coals occur in the north eastern states of Meghalaya, Assam, Arunachal Pradesh and Nagaland.
Answer :: Solar energy is an inexhaustible source of energy produced from sunlight. There is enough scope for the development of solar energy. It has bright future in India because of the following reasons-
(a) Many parts (regions) of the country received sunlight on 300 days annually and so it becomes possible to generate 20 MW solar energy per square kilometer in such areas.
(b) It is easy to establish solar plants in urban and rural areas.
(c) By setting up solar plants in rural areas the dependence of people on firewood can be reduced.
(d) It is also becoming popular as it is used for cooking, heating water, lighting, etc.
(e) It is a renewable source of energy, while other conventional sources used for generating electricity are exhaustible and non-renewable.
Answer : Tungsten, glass, aluminum and copper are the main minerals used to make a light bulb.
Answer : Open pit mine is done for those minerals which lie close to the surface of the earth.
Quarrying is used for mining minerals which are at shallow depths.
Underground mining with shafts is used for minerals which lie at great depths below the surface of the earth.
Answer : These all mines are situated in short distance with each other. So, when the raw material(iron) is needed for iron and steel industry, it is easily available. The cost of transportation becomes less.
Answer :The Chota Nagpur Plateau is a plateau in eastern India, which covers much of Jharkhand state as well as adjacent parts of Bihar, Odisha, West Bengal and Chhattisgarh. Chota Nagpur plateau is a store house of mineral resources such as mica, bauxite, copper, limestone, iron ore and coal. Damodar Valley Corporation supplies majority of the coking coal in India. It Holds a good share of country's mineral output. Districts of east and west Singhbhum are a major source of minerals in this region.
Most of the substitute used are obtained from natural resources.
Almatti Dam on Krishna River
Baspa Hydro - Electric Project on Baspa River, a tributary of the Sutlej.
Bhadra Reservoir Project on the river Bhadra which is in Karnataka.
Bhakra - Nangal on the river Sutlej.
Answer : Rewa solar power plant in M.P.
Answer : This is the nutritional facts about the Real juice.
Answer :Thermal power station in M.P. are: