HYDROSPHERE

If you pass to solid state from gas state

• sublimation

• inverse sublimation

• fusion

• solidification

desity of the solid water is

• higher of liquid water

• lower of liquid water

• equal of liquid water

Which two elements make up water?

• hydrogen and oxygen

• oxygen and carbon

• helium and oxygen

• hydrogen and neon

97% of the water on the Earth is

• saltwater

• freshwater

Which type of water is usable to living organisms for survival?

• saltwater

• freshwater

Water is the only substance on Earth that

• exists in the liquid state

• boils at very high temperatures

• freezes at very low temperatures

• commonly exists in all 3 states of matter

Most of the fresh water on Earth is located in

• ice

• rivers

• the air

• oceans

drinking water treatment

• The water comes from factories and then goes clean to the river

• The water comes from groundwater and comes to our home

• The water comes for a lake and comes to the river

Melting point of the water at 1 atmosphere is

• 100 ªC

• 0ºC

• 50ºC

waste water treatment

• The water comes from the river and goes clean to our home

• The water comes from the river and comes to a lake

• The water comes from factories and goes clean to the river