Major Sources
What is the cause of most water pollution?
What are human activities?
What happens after oil spills?
What is a natural cleaning process?
Three fourths of fresh water on earth is what?
What is ice?
Where is water stored in the ground?
What is water beneath soil and rock?
What causes algae to grow in ponds?
What is agricultural waste?
What do most communities do with their wastewater?
What is sewage treatment?
Most LIQUID fresh water on earth is what?
What is groundwater?
True or false: Groundwater is always safe to drink.
What is false?
A pipe gushing wastewater into a river or stream is an example of what source?
What is a point source?
What is something else you can do instead of releasing wastes into the environment?
What is reducing pollutants?
Why can't you see many parts of earth?
What are clouds?
Why do people drink water from the ground?
What are areas that get less water?
What is the water and human wastes that are washed down sinks, showers, and toilets?
What is sewage?
What is something you can do with your wastes without sending it to the dump?
What is composting?
How much percent of all water on earth is fresh?
True or false: Groundwater's the most abundant.
What is true?
A farm is an example of what source?
What is a nonpoint source?
What are the things you should avoid to stop water pollution?
What's fertilizer and pesticide?
What can be a cause of low fresh water?
How long can ground water last?
What is a few days to a million years?