Unit Test-2 grade 4

The gaseous form of water is called ____________.

The earth has four domains—__________, __________, __________, and __________.

• geosphere
• cryosphere
• anthrosphere
• lithosphere, hydrosphere, atmosphere, biosphere

The __________ is the layer of air that surrounds the earth.

• Atmosphere
• ithosphere

• Lithosphere

• Hydrosphere

What is the solid part of the Earth called?

• Atmosphere

• Lithosphere

• Biosphere

• Hydrosphere

Which gas is present in the largest amount in the atmosphere?

• Carbon dioxide

• Oxygen

• Hydrogen

• Nitrogen

Which layer of the Earth is the hottest?

• Crust

• Mantle

• Core

• Surface

What process turns liquid water into vapour?

• Freezing

• Condensation

• Evaporation

• Melting

Which domain includes all living things?

• Biosphere

• Lithosphere

• Atmosphere

What protects Earth from the sun’s harmful rays?

• Air

• Fire

• Water

• Ozone layer

What are the three layers of the Earth?

• Water, Air, Fire

• Crust, Mantle, Core

• Ice, Soil, Rock

• Clouds, Sky, Rain