Surface Water

The circulation of the earth's water, in which water evaporates from the sea into the atmosphere, where it condenses and falls as rain or snow, returning to the sea by rivers or returning to the atmosphere by evapo-transpiration is called the...

• carbon cycle
• nitrogen cycle
• water cycle
• rock cycle

What is occurring at A in the diagram?

• runoff
• precipitation
• evaporation
• condensation

What process is happening at C in the diagram?

• runoff
• precipitation
• condensation
• transpiration

H₂O is a/an…

• element
• molecule of a compound
• atom
• molecule of an element

What is the source of groundwater?

• rain, snow, melted glaciers
• ocean water
• icebergs
• water from fossilized animals

An underground layer of permeable rock that holds groundwater which can be extracted by drilling a well.

• water table
• aquifer
• watershed
• river

The top boundary of the zone of saturation in an aquifer which can fluctuate based on precipitation and the amount of draw from wells

• aquifer
• water table
• watershed
• drainage system

How do people extract groundwater?

• groundwater cannot be extracted
• by drilling wells and pumping water out of the ground
• mining water from the Earth
• answer not shown

What percentage of the world's water is found in the Oceans?

• 25%

• 50%

• 75%

• 97%

• 99%

What is a polar molecule?

• It is a negative charge

• It has a positive charge

• It is positive on one side, negative on the other

• It is positive on the outside, negative on the inside