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100

What does ppb stand for?

parts per billion

100

People in rural areas use this system to purify their wastewater

Septic system

100
The is the single biggest water user around the world.
Agriculture
100

What is nonpoint-source pollution?

Pollution that does not come from a particular source.

100
What is drip irrigation?
Irrigation in which water is delivered in drops directly to the plants roots.
200

Which of these is the most efficient form of irrigation?  Flood, Spray, Drip

Drip

200

What chemical kills bacteria in the water treatment process?

Chlorine

200
The second largest user of water around the world is...
Industry
200
Give me two examples of point-source pollution
Pipe that is pouring waster directly into a river Tanker ship that spills oil into the ocean
200

How can a dam be helpful?

control amount of floodin

300

This technique of removing salt from ocean water could help create more fresh water

Desalination

300

Dry conditions with little rainfall is known as

drought

300

What things in a house uses the most amount of water per day

Toilet

300
__________ brings material that washes off roads, fields, lawns, and other surfaces with it
Runoff
300

Why are locks built near some river dams?

To allow ships to travel past the dam

400

Who has the power to limit factories' pollution amounts in a state?

the government / EPA

400

What is contributing to global freshwater shortages?

Increasing human population

400
Water is used to irrigate crops in farming, what is water mainly used for in Industry.
To cool things, machines, or cool things being produced
400
What is a sewage treatment plant? What do these plants do?
A place where sewage is cleaned before returning to surface water. These facilities kill pathogens and get rid of other types of pollution.
400

The amount of a substance in another substance is

Concentration

500

Name a way a household might pollute fresh water

fertilizer, car wash soap, leaking underground pipes, dumping chemicals/paint down the drain 

500

What would keep the amount of water in an aquifer about the same over a period of time?

For an aquifer to keep the same amount of water, the amount recharging it must equal the amount being removed.

500

What is a benefit of aquaculture?

Fish for food

500
How are leaking sewer pipes a threat to groundwater quality?
Sewer pipes carry water that is polluted with human waste and bacteria underground. When they leak into groundwater, toxins and disease causing bacteria are spread throughout an aquifer.
500

What can you personally do to conserve water and lower your water bill?

Take shorter showers, low flow showers, toilets, etc...