Water Pollution

Fertilizer, sewage, and animal feces can wash into water, leading to... 

• thermal pollution
• cultural eutrophication
• natural eutrophication
• biomagnification

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

• point source pollution
• nonpoint source pollution
• thermal pollution
• ocean pollution

97% of the water on earth is _________, making it undrinkable for humans.

• fresh water
• ground water
• salt water
• surface water

Water pollution that comes from a single source, like a tank or pipe, is considered...

• point source pollution
• nonpoint source pollution
• thermal pollution
• ocean pollution

The Harrison's decided to cut down the trees and the brushes that were obstructing their view. This left an open area with no vegetation between the house and the lake. What type of pollution would this cause?

• Sediment
• Nutrient Oversupply
• Pathogens
• Thermal 

Marta placed her leftover paint and solvent in her garbage for the regular trash pick-up instead of following the disposal instructions. What type of pollution would this cause?

• Pathogens
• Toxic Chemicals
• Sediment
• Nuclear Waste

Untreated sewage is released into the environment. What type of pollution would this NOT cause?

• Pathogens
• Solid/Trash Waste
• Nutrient Oversupply
• Sediment

The pollution of waterways creating conditions in which productivity is decreased and gills of bottom dwelling organisms are clogged is due to

• erosion and sedimentation
• runoff and flooding
• urbanization
• mining dams

Noise pollution in water is a significant problem for

• schooling fish
• sea turtles
• whales
• phytoplankton

The Clean Water Act: I. Protects surface waters; II. Protects groundwater; III. Protects the diversity of aquatic species

• I only

• II only

• III only

• I and III only