Water Pollution Gizmo Assessment

Logging operations used to use a technique called clear-cutting, in which all of the trees in an area are cut down. What type of water pollution will this most likely lead to?

• Toxic

• Sediment

• Nutrient

• Bacterial

When cars age or are poorly maintained, they tend to leak oil onto roadways and parking lots. This oil is washed into the nearest waterway with the next rainfall. What type of water pollution does this cause?

• Toxic

• Sediment

• Nutrient

• Bacterial

Joggers running along an urban running path noticed paint running out of a culvert into a nearby creek. Local authorities investigated and found that some homeowners had painted the outside of their home and dumped the extra paint down a storm drain. They were fined. What type of water pollution did they cause?

• Toxic

• Sediment

• Nutrient

• Bacterial

A farmer applies excess fertilizer to one of her fields just before a rainstorm. What kind of pollution is this most likely to lead to?

• Toxic

• Sediment

• Nutrient

• Bacterial

A new wastewater treatment plant opens in an area where raw sewage used to be dumped directly into a bay. Which two types of pollution will be reduced the most by the new plant?

• Toxic and sediment

• Sediment and bacterial

• Toxic and nutrient

• Bacterial and nutrient

The introduction of harmful substances into water

• Water pollution

• Air pollution

• Land pollution

• Space pollution

The presence of harmful bacteria in water supplies.

• Nutrient pollution

• Bacterial pollution

• Sediment pollution

• Toxic pollution

The presence of excess nutrients in the water.

• Nutrient pollution

• Bacterial pollution

• Sediment pollution

• Toxic pollution

The presence of excessive sediments such as silt and clay in water.

• Nutrient pollution

• Bacterial pollution

• Sediment pollution

• Toxic pollution

The presence of toxic substances in water.

• Nutrient pollution

• Bacterial pollution

• Sediment pollution

• Toxic pollution