Q.3 (ii):- Why do you think that solar energy has a bright future in India? Answer:- Solar energy has a bright future in India because – 1. India being…
Q.3 (ii):- Why do you think that solar energy has a bright future in India? Answer:- Solar energy has a bright future in India because – 1. India being…
Q.3 (i):- Describe the distribution of coal in India. Answer:- In India coal deposits are found mainly of two geological ages – 1. Gondwana coal deposits, which are about…
Q.2 (iv):- Why do we need to conserve mineral resources? Answer:- Mineral resources are limited. It takes million of years for their formation and therefore, these resources are non-renewable…
Q.2 (iii):- How are minerals formed in igneous and metamorphic rocks? Answer:- In igneous and metamorphic rocks, minerals occur in cracks, crevices, faults and joints. They are formed when minerals…
Q.2 (ii):- What is a mineral? Answer:- Mineral is a homogeneous, naturally occurring substance with a definite internal structure
Q.2 (i):- Distinguish between the following in not more than 30 words – (a) Ferrous and Non-ferrous minerals (b) Conventional and Non-conventional sources of energy. Answer:- (a) Ferrous minerals –…
Q.1 (iv):- Which one of the following is contained in the Monazite sand? (a) Oil (b) Uranium (c) Thorium (d) Coal Answer:- (c) Thorium
Q.1 (iii):- Koderma in Jharkhand is the leading producer of which one of the following minerals? (a) Bauxite (b) Mica (c) Iron ore (d) Copper Answer:- (b) Mica
Q.1 (ii):- Which of the following mineral is formed by decomposition of rocks leaving a residual mass of weathered material? (a) Coal (b) Bauxite (c) Gold (d) Zinc Answer:-…
Q.1 (i):- Minerals are deposited and accumulated in the strata of which of the following rocks? (a) Sedimentary rocks (b) Metamorphic rocks (c) Igneous rocks (d) None of these. …