Final Class on Water

Eutrophication only occurs in lakes

• Yes

• No

Algal blooms do not discolor water

• YES

• NO

Thermal stratification in lakes help to improve water quality

• YES

• NO

Hypolimnetic aeration is recommended for shallow tropical lakes

• YES

• NO

If groundwater is contaminated it will not affect lakes and streams

• YES

• NO

The process by which plants lose water through small openings in leaves

• Transpiration

• Evaporation

• Sublimation

• Drying

Surface runoff occurs when the precipitation rate is _____ the infiltration rate

• greater than

• less than

• equal to

Which of the following is by far the leading cause of water pollution?

• Factories

• Mining

• Sewage treatment plants

• Agriculture activities

Which of the following is a nonpoint source of water pollution?

• sewage treatment plant

• electric power plan

• active and inactive coal mine

• logged forest

To determine the presence and concentration of water pollutants, scientists are least likely to use

• chemical analysis of water samples

• satellite photographs

• analysis of indicator species

• genetically engineered bacteria and yeasts