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Q:

An instrusion of magma along a bedding plane is called a

A) Dyke	B) Still
C) Batholith	D) Laccolith

Answer & Explanation Answer: C) Batholith

Explanation:

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Filed Under: World Geography

Q:

The most abundent metal in the Earth's crust is

A) Calcium	B) Aluminium
C) Iron	D) Magnesium

Answer & Explanation Answer: B) Aluminium

Explanation:

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Q:

Quartz composed of which two elements

A) Iron and magnesium	B) Iron and oxygen
C) Oxygen and silicon	D) Silicon and iron

Answer & Explanation Answer: C) Oxygen and silicon

Explanation:

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Q:

Which of the following is present in the largest amount in terms of percent by mass in the earth's crust

A) Silicon	B) Oxygen
C) Carbon	D) Calcium

Answer & Explanation Answer: B) Oxygen

Explanation:

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Q:

If $3 x + 7 = x^{2} + p = 7 x + 5$ , what is the value of P ?

A) 17/2	B) 25/3
C) 33/4	D) 41/5

Answer & Explanation Answer: A) 17/2

Explanation:

$3 x + 7 = 7 x + 5 = > 7 x - 3 x = 2 = > 4 x = 2 = > x = 2$

Now, $3 x + 7 = x^{2} + p = \frac{3}{2} + 7 = \frac{1}{4} + p = > p = \frac{17}{2}$

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Q:

' Mohs scale ' is used to indicate the

A) degree of brittleness of a substance	B) degree of hardness of mineral
C) degree of viscosity of a liquid	D) degree of elasticity of a material

Answer & Explanation Answer: B) degree of hardness of mineral

Explanation:

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Q:

If 2 tables and 3 chairs cost Rs, 3500 and 3 tables and 2 chairs cost Rs. 4000, then how much does a table cost ?

A) 500	B) 1000
C) 1500	D) 2000

Answer & Explanation Answer: B) 1000

Explanation:

Let the cost of a table and that of a chair be Rs. x and Rs, y respectively.

Then, 2x + 3y = 3500 ...(i)

and 3x + 2y = 4000 .....(ii)

solving (i) and (ii) we get x = 1000, y = 500

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Q:

The upper part of the mantle upon which the crust of the earth floats is called

A) Barysphere	B) Mesosphere
C) Mohorovic discontinuity	D) Asthenosphere

Answer & Explanation Answer: D) Asthenosphere

Explanation:

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