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
Gondwanaland was named by

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

Question-2
________ are the result of strain in the rocks of crust and mantle.

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

Question-3
In the outer core of the earth, iron exists in a _________ condition .

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

Question-4
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-5
________ is a single land mass which had broken up and formed different continents.

(A) Laurasia	(B) Gondwanaland
(C) Pangea	(D) Volcano

Question-6
The surface of the earth we live is known as

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

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

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

Question-8
The thickness of the mantle is

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

Question-9
The molten material of the earth began to reorganize itself into layers called

(A) Disintegration	(B) Degeneration
(C) Differentiation	(D) Mutation

Question-10
Which among the following is a unit of distance for expressing astronomical distances?

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

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Std 9

Andhra Pradesh (English Medium)

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