WATER ON EARTH

When the clouds cannot absorb any more water, ________________ happens

• Evaporation

• Condensation

• Precipitation

• Filtration

The phase of the water cycle when liquid water becomes water vapour is …

• Condensation

• Surface run-off

• Evaporation

• Precipitaion

The phase of the water cycle when water vapour cools down and forms clouds is …

• Precipitation

• Condensation

• Evaporation

• Filtration

What percentage of the Earth’s water is saltwater?

• 22%

• 3%

• 77%

• 97%

What percentage of water on Earth is freshwater?

• 77%

• 20%

• 3%

• 97%

What are the characteristics of saltwater?

• Temperature, salinity and pressure

• Temperature and pressure

• Salinity and density

• Temperature, salinity and density

Where can saltwater be found?

• In seas, oceans and the ice caps

• In seas and oceans

• In seas, oceans and groundwater

• In lakes and rivers

Seawater is colder near the surface and warmer in deep water:

• True

• False

• It depends on the salinty

• It depends on the density

Vast masses of saltwater that separate the continents and cover a large proportion of the Earth's surface, particularly in the Southern Hemisphere are…

• Seas

• Oceans

• Lakes

• Hydrosphere

TRUE OR FALSE: Fresh water is denser than saltwater

• True

• It depends on the temperature

• It depends on the salinity of fresh water

• False