Andhra Pradesh (English Medium) Std 9 Study Materials, Online Learning, Question Papers, Classnotes, Practice Test, MCQ | Smartindia Educational Program : www.smartindia.net.in

Question-1
The surface of the earth we live is known as

(A) core	(B) mantle
(C) crust	(D) lower mantle

Question-2
The scientist who proposed the theory of evolution

(A) Newton	(B) Galileo
(C) Darwin	(D) Dalton

Question-3
Gondwanaland was named by

(A) Eduard Suess	(B) Charles Lapworth
(C) Edward A. Irving	(D) Bruce C. Heezen

Question-4
Which among the following is a unit of distance for expressing astronomical distances?

(A) Kilometer	(B) Light year
(C) Miles	(D) Feet

Question-5
________ are the result of strain in the rocks of crust and mantle.

(A) Volcanoes	(B) Differentiation
(C) Earthquakes	(D) Continental drift

Question-6
The thickness of the mantle is

(A) 2600 km	(B) 2900 km
(C) 2300 km	(D) 3000km

Question-7
The petrified remnant of a past life is called

(A) Igneous rock	(B) Mantle
(C) Lava	(D) Fossil

Question-8
The rocks in the inner core remain in solid state due to

(A) Lower pressure and lower temperature	(B) Tremendous pressure and enormous temperature
(C) Lower pressure and enormous temperature	(D) Tremendous pressure and lower temperature

Question-9
A vent or opening in the Earth's surface to let out the hot , molten liquid ,gases, and pieces of rock with pressure is called

(A) Volcano	(B) Earthquake
(C) Differentiation	(D) Continental drift

Question-10
In the outer core of the earth, iron exists in a _________ condition .

(A) Solid	(B) Gaseous
(C) Molten	(D) Plasma

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Std 9

Andhra Pradesh (English Medium)

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