Saturday, 3 November 2012

CBSE Class 10 - Social Science - CH 5 - Minerals and Energy Resources

Minerals and Energy Resources
Class 10 Minerals and Energy Resources

Q1: Limestone is associated with

(a) Sedimentary rock
(b) Igneous rock
(c) Metamorphic rock
(d) Tertiary rock

Q2(NCERT): 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

Q3(CBSE): Which is correct about Magnetite iron core?

(a) Magnetite is the most important industrial iron ore in terms of quantity used.
(b) Magnetite has the inferior magnetic qualities which is not valuable in the electric industry.
(c) It is the finest iron ore with very high content of iron upto 70%.
(d) It has a slightly lower iron content than hematite (50-60%)

Q4: They study minerals as part of earth's crust for a better understanding of landforms. They are called:

(a) Scientists
(b) Geographers
(c) Geologists
(d) Ecologists

Q5(NCERT): Koderma, in Jharkhand is the leading producer of which one of the following minerals? 
(a) bauxite 
(b) mica 
(c) iron ore 
(d) copper

Q6(CBSE): Which one of the following is an essential feature of Mica?

(a) It is a metallic mineral made up of a series of plates
(b) It is not used in electric and electronic industry.
(c) It cannot be easily split into thin sheets
(d) It can be clear, black, green, red, yellow or brown.

Q7: Small occurrences of minerals in rocks are known as:

(a) Lodes
(b) Veins
(c) Orcs
(d) Crevices

Q8(NCERT): Which of the following minerals is contained in the Monazite sand? 
(a) Oil 
(b) Uranium 
(c) Thorium 
(d) Coal

Q9(CBSE): Which mineral belongs to the category of non-ferrous metals?

(a) Iron core
(b) Manganese
(c) Cobalt
(d) Copper

Q10: Khetri mines are famous for

(a) coal
(b) gold
(c) copper
(d) iron

Q11(CBSE): Which one of the following minerals is NOT obtained from the veins and lodes?

(a) Tin
(b) Zinc
(c) Lead
(d) Gypsum

Q12(CBSE): The larger occurrences of minerals of igneous and metamorphic rocks are called: 

(a) Veins
(b) Lodes
(c) Beds
(d) Layers

Q13(NCERT): 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 the above

Q14: Rat-hole mining is found in 

(a) Jharkhand
(b) Orissa
(c) Madhya Pradesh
(d) Meghalaya

Q15(CBSE): Which one of the following minerals is largely derived from Ocean Waters?

(a) Bromine
(b) Silver
(c) Platinum
(d) Bauxite

1: (a) Sedimentary rock
2: (b) bauxite
3: (c) It is the finest iron ore with very high content of iron upto 70%.
4: (c) Geologists
5: (b) mica
6: (d) It can be clear, black, green, red, yellow or brown.
7: (b) Veins
8: (c) Thorium 
9: (d) Copper
10: (c) copper
11: (d) Gypsum
12: (b)Lodes
13: (a) sedimentary rocks
14: (d) Meghalaya
15: (a) Bromine

Q & A

Q16: Define minerals? Give two examples.

Answer: Minerals are naturally occurring homogenous substances with definable internal structure. e.g. coal and iron.

Q 17: Mention the properties used by geologist to classify the minerals.
Answer: Properties used by geologists to classify minerals are:
  •  colour
  • hardness
  • lusture
  • density
  • crystal formation


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