question_answer 11)

 Multiple choice questions.   (i) Which one of the following minerals is formed by decomposition of rocks, leaving a residual mass of weathered material? (a) Coal         (b) Bauxite     (c) Gold         (d) Zinc   (ii) Koderma, in Jharkhand is the leading producer of which one of the following minerals? (a) Bauxite     (b) Mica       (c) Iron ore       (d) Copper   (iii), Minerals are deposited and accumulated in the stratas of which of the following rocks? (a) Sedimentary rocks           (b) Metamorphic rocks (c) Igneous rocks               (d) None of these   (iv) Which one of the following minerals is contained in Monazite sand? (a) Oil         (b) Uranium     (c) Thorium       (d) Coal  

Answer:

(i) (b) Coal gold and zinc are not formed by the decomposition of rocks, leaving a residual mass of weathered material.   (ii) (b) Koderma is the leading producer of mica not of bauxite, copper and iron ore.   (iii) (a) Minerals are deposited and accumulated in the stratas of sedimentary rocks.   (iv) (c) Monazite sand does not contain oil, uranium and coal.