Unit 9 Water Semester Review

What is a Recharge Zone in an Aquifer?

• A layer that has spaces where water can fill up in

• A place where water can get into the aquifer and refill it

• A place where multiple sources of water flow into one

• An artificial lake created by damming

Which of these is an effect of eutrophication?

• Decreased oxygen in the water

• Decrease in algae in the water

• Increase in fish population

• Increase in oxygen in the water

What law permits and requires the US government to restore and protect the "physical, chemical, and biological continuity" of surface water?

• Safe Water Act

• Water Protection Act

• Water Quality Act

• Clean Water Act

In secondary stage of sewage treatment, what is being removed?

• Pathogens

• Physical debris

• Dissolved organic waste

• Chemically harmful components

How much water on Earth is actual usable drinking water

• 0.5 percent of water is drinkable.

• All of the water on earth is drinkable water

• 3 percent of water is drinkable

• 70 percent of water is drinkable.

What are the two type of water pollution?

• Point Pollution and Point Source

• Point Source and Organic Waste

• Non-Point Pollution and Non-Point Source

• Point Pollution and Non-Point Pollution

What is a Hypoxic Zone?

• When part of the water’s oxygen levels are very high and animals that depend on oxygen cannot survive there

• Where part of the water’s oxygen levels are very low and animals that depend on oxygen cannot survive

• When the entire body of water has very low oxygen levels and no animals can survive there

• When all of the body of water has high oxygen and animals that depend on oxygen thrive there

What is an example of Point Pollution?

• Pollution from run off

• Pollution from waste in rain

• Pollution from other steams

• Pollution from a factory dumping waste

What eventually happens to plastic waste in the ocean?

• Decomposers turn it into harmless waste

• It breaks into smaller pieces of plastic

• It is dissolved by water

• It is consumed by marine organisms

What is a water pollutant?

• Oil

• Oxygen

• Dirt

• Animal