Human Impact on Water Systems

What is a watershed?

• A large body of saltwater

• An area of land that drains into a particular body of water

• A type of water pollution

• A method of water purification

Which of the following is a simple procedure to reduce water pollution in a watershed?

• Building more factories

• Planting trees along riverbanks

• Increasing the use of pesticides

• Draining wetlands

What is one way human activities can negatively impact ocean systems?

• Overfishing

• Planting coral reefs

• Reducing carbon emissions

• Cleaning up oil spills

How does urban development affect groundwater in a watershed?

• It increases groundwater recharge

• It decreases surface runoff

• It reduces groundwater recharge

• It has no effect on groundwater

Explain how human activities can lead to ocean acidification.

• By increasing the use of solar panels

• By burning fossil fuels, which increases carbon dioxide levels

• By planting more trees

• By reducing the use of plastics

Which of the following is a beneficial influence of human activity on a watershed?

• Deforestation

• Passing laws to reduce pollution

• Industrial waste disposal

• Over-irrigation

Analyze the impact of agricultural runoff on surface water quality in a watershed.

• It improves water quality by adding nutrients

• It can lead to algae blooms

• It has no impact on water quality

• It reduces the risk of flooding

Describe how human dependence on ocean systems can lead to habitat destruction.

• By promoting marine conservation

• Through activities like using disposable containers and coastal development

• By reducing carbon emissions

• By increasing the use of renewable energy

What is the primary source of groundwater contamination in urban areas?

• Natural mineral deposits

• Industrial waste and sewage

• Ocean water intrusion

• Evaporation

Which human activity is most likely to increase the salinity of ocean water?

• Desalination

• Overfishing

• Deforestation

• Excessive freshwater withdrawal