Water Unit Review

The major rivers in Connecticut flow into what body of water?

• Atlantic Ocean
• Gulf of Mexico
• Long Island Sound
• Lake Champlain

What is the term for an area of land that drains into one river?

• River system
• Recharge zone
• Aquifer
• Watershed

What is the term for an land directly above an aquifer?

• River system
• Recharge zone
• Pre-aquifer
• Watershed

Toxins, such as mercury, often appear at higher concentrations in top level consumers because.....

• They are omnivores.
• They eat many prey animals which can toxins, too. 
• There are fewer of them.
• They digest toxins better.

Water pollution that comes from many sources is considered...

• Point source pollution
• Ocean pollution
• Thermal pollution
• Nonpoint pollution

Bacteria, viruses, and parasitic worms are considered ________ and must be removed from water.

• Heavy metals
• Solid waste
• Pathogens
• Poisons

Water pollution that comes from a single source is considered...

• Point source pollution
• Nonpoint source pollution
• Thermal pollution
• Ocean pollution

Filtration, settling, aeration, and chlorination are all steps in...

• Water purification
• Water pollution
• Groundwater recharging
• Desalination

The water held behind a dam is called a __________?

• Natural lake
• Nature preserve
• Reservoir
• River

Groundwater is contain in rock formations called __________?

• Reservoirs
• Tanks
• Pools
• Aquifers