SGW Test Review

what would be the best way a company to limit ecological impact when getting water from a river?

• only get water when you need it

• stay away from the river so the pollution cannot reach the river

• get water at the bottom of the river

• steam the water first

dumping oil on the ground hurts the environment because

• rots the base of the fence post and attractsharmful insects

• it goes into the ground and pollutes the water

• mutates the wildlife

• can start a fire

From your packet, we saw what an abnormal amount of phosphorous resulted in an increase in the amount of algae. What happened as the result?

• The algae upset the balance of carbon dioxide and oxtygen in the water

• the animal life in the stream was benefited

• the algae acted as a blanket on the stream casuing temperature to increase.

• the algae brought in a predator and killed all the fish.

Which of these is most likely to create large areas of land subsidence?

• Extraction of ground water

• eruptions of volcanoes

• global warming

• greenhouse effect

What is a watershed?

• an area of land that separates waters flowing to different rivers

• Stores water underground

A lake can be classifed as what?

• run off

• watershed

• aquifer

• surface water

What is aquifer?

• the large area underground where water is stored

• Where the top layer of water resides

• Where rock meets roll

How do industrial, agricultural, and residential activities of humans affect the groundwater in local areas?

• most of the water evaporates leaving none for the wildlife.

• they pollute from their activities through the soil and it enters the water table

• it replaces groundwater

How does agricultural activity most likely affect the surface water of the area?

• makes the water completely uninhabitable

• it contaminates the water mutating the fish

• runoff containing crop fertilizer leaks into the river causing excess growth of algae

A leaking septic system in a farmhouse can harm the area how?

• spilling trash

• by polluting the groundwater

• by making the area stink