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Our Changing Earth

Total soal: 20

Worksheet time: 7mins

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1.

Which force acts in the Interior of the Earth

a)

Endogenic Force

b)

Exogenic Force

c)

None of these

d)

Both (A) and (B)

2.

Which forces work on the surface of the Earth

a)

Endogenic Force

b)

Exogenic Force

c)

None of these

d)

Both (A) and (B)

3.

Mt .......................... is a dormant volcano

a)

Etna

b)

Vesuvies

c)

Kilmanjaro

d)

none of these

4.

P waves travel at a speed of

a)

6 km/s

b)

8 km/s

c)

20 km/s

d)

32 km/m

5.

Secondary waves are also called as ...................

a)

Push waves

b)

Surface waves

c)

Shock waves

d)

None of these

6.

........................ waves do not pass through liquids

a)

Primary Waves

b)

Secondary Waves

c)

Surface Waves

d)

Push Waves

7.

The Experts who study the pattern of the Earthquakes are called ...........................

a)

Scientists

b)

Seismologists

c)

Artists

d)

Geologists

8.

................... is an Instruments which records the intensity of the Earthquake waves

a)

Richter Scale

b)

Seimograph

c)

Barometer

d)

none of these

9.

The Richter scale was Invented in

a)

1945

b)

1935

c)

1947

d)

2006

10.

According to an Estimate ...................................... Earthquakes are recorded every year

a)

2 million

b)

2.5 million

c)

4 million

d)

1 million

11.

He proposed the Theory of Continental Drift

a)

Alfred Wegener

b)

Charles Richter

c)

Thomas Richter

d)

Issac Newton

12.

Whom do you like most ? Issac Newton or Albert Einsten

(Note:you will get points for this)

4 lines
13.

Richter Scale was Invented by .........................

a)

Charles Richter

b)

Thomas Richter

c)

Bobby Richter

14.

The place of origin of an Earthquake is called

a)

Epicentre

b)

Focus

c)

Waves

15.

It is an Active Volcano

a)

Mt Etna

b)

Mt Vesuvius

c)

Crater Lake

16.

According to the Theory , A super continent called ............... broke into different continents

a)

Permian

b)

Jurassic

c)

Pangaea

d)

Cretaceous

17.

Active Volcanoes are

a)

They erupt frequently and hurl out gases,ashes,lava and rocks

b)

Those volcanoes which have not erupted from a long period

c)

They are in-active and therefore called Dead volcanoes

18.

Movement of the plates occur due to the various forces acting upon it Two broad caregories of these forces are .......................... and ..........................

a)

Endogenic

b)

Primary Waves

c)

Exogenic

d)

Surface Waves

19.

......................... is the sudden shaking of the Earth's crust

a)

Surface Waves

b)

Earth Quake

c)

Exogenic Shake

d)

none of these

20.

In 2001 massive Earthquake occured in

a)

Bhuj (Gujarat)

b)

Jammu and Kashmir

c)

Chamoli (Uttarakhand)

d)

Latur (Maharashtra)