9.1 The System and Structure of the Earth

Biosphere is the life zone consists of a variety of life such as humans and animals.

• True

• False

Which of the following is the function of the ozone layer in the atmosphere?

• Controls the Earth's temperature

• delivers radio waves

• Prevents the meteorites from landing on Earth's surface

• Protects the Earth from UV rays

The following are the main components of the system of the Earth except

• Biosphere

• Mesosphere

• Hydrosphere

• Geosphere

Mantle consists of three components.

Which component covers the crust?

• Stratosphere

• Lithosphere

• Asthenosphere

• Mesosphere

Which of the following processes involves the turning of water in the ocean into water vapour?

• Sublimation

• Evaporation

• Melting

• Boiling

_______________ zone has little or no light.

• Surface zone

• Midnight zone

• Dark zone

this atmospheric layer is known as ionosphere where aurora occurs her.

• Mesosphere

• Troposphere

• Stratosphere

• Thermosphere

The burning and destruction of meteorites happens in this layer.

• Thermosphere

• Stratosphere

• Exosphere

• Mesosphere

This atmospheric layer is suitable for aircraft flight.

• Troposphere

• Stratosphere

• Mesosphere

• Exosphere

The diagram shows the Earth's layer.

Which of the following is the mantle?

• A

• B

• C

• D