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REVISION EARTH 1

Total questions: 21

Worksheet time: 11mins

Name
Class
Date
1.

What are the main component of the Earth system?

a)

Air zone, life zone, water zone

b)

Element, compound and mixture

c)

Atmosphere, Geosphere, Thermosphere, Exosphere

d)

Atmosphere, Hydrosphere, Geosphere, Biosphere

2.

Which of the following represents the biosphere components?

a)

Gold, carbon, silver and

b)

Rain water, pond, river and sea

c)

Trees, ants, human and amoeba

d)

Oxygen, nitrogen, methane and argon

3.

Ozone has been depleted due to

a)

Oil spill

b)

CFC

c)

CFS

d)

Deforestation

4.

Ozone layer is found in the

a)

Mesosphere

b)

Thermosphere

c)

Exosphere

d)

Stratosphere

5.

The diagram shows the layers of the Earth atmosphere. What is X?

a)

Thermosphere

b)

Stratosphere

c)

Ionosphere

d)

Exosphere

6.

Which of the following statements about the thermosphere layer is true?

a)

Contains the ozone layer

b)

Contains helium and hydrogen gas

c)

Meteorites are burned up here

d)

Contains ions that can reflect radio waves

7.

Which of the following is not the reason why the Earth becomes a living place for organism?

a)

Free from pollution

b)

The presence of water

c)

The temperature is not too hot and cold

d)

The existence of water and soil

8.

Which of the following component of the Earth represent this explanation "Mountainous regions, volcanoes are classified into this zone"

a)

Biosphere

b)

Geosphere

c)

Atmosphere

d)

Hydrosphere

9.

Which of the following layers of the atmosphere is the closest to the Earth's surface?

a)

Mesosphere

b)

Thermosphere

c)

Exosphere

d)

Troposphere

10.

Why is the ozone layer important in the atmosphere?

a)

To burn and destroy a meteors

b)

To reflect the radio waves back to the Earth

c)

To absorbs the ultraviolet (UV) rays

d)

To increase the temperature

11.

What protects the earth from harmful UV rays from the sun?

a)

Clouds

b)

Nitrogen gas

c)

Ionosphere

d)

The ozone

12.

What is the layer of the atmosphere in which meteors will burn up?

a)

Thermosphere

b)

Exosphere

c)

Mesosphere

d)

Troposphere

13.

From troposphere to stratosphere the altitude increases. As altitude increases the air pressure .....

a)

Increases

b)

Decreases

c)

Stays the same

d)

All of the above

14.

Most of Earth's weather occurs in the 

a)

Troposphere

b)

Stratosphere

c)

Mesosphere

d)

Exosphere

15.

Which of the following layer of the atmosphere also known as ionosphere?

a)

Mesosphere

b)

Trosposphere

c)

Thermosphere

d)

Exosphere

16.

Which of the following does NOT belong in the biosphere?

a)

Grass

b)

Clouds

c)

Microorganism

d)

Starfish

17.

The fish live in water. This is an example of interaction between ...

a)

Hydrosphere-atmosphere

b)

Geosphere-atmosphere

c)

Hydrosphere-biosphere

d)

Hydrosphere-geosphere

18.

Which of the ocean layer that can be penetrated by sunlight?

a)

Surface zone

b)

Underground zone

c)

Midnight zone

d)

Dark zone

19.

Larger sea creatures such as giant squid and various species of whales live here

a)

Dark zone

b)

Surface zone

c)

Midnight zone

20.

Which of the following is the correct components of the Earth system based on the given characteristic?

"Covers 70% of the Earth's surface"

a)

Atmosphere

b)

Hydrosphere

c)

Hydrothermal

d)

Geosphere

21.

In which zone of the ocean can this fish be found?

a)

Surface zone

b)

Twilight zone

c)

Midnight zone

d)

Dark zone