Human Impact on Watersheds

What is one way agricultural development affects watersheds?

• It increases groundwater recharge.

• It decreases the delivery of water to surface bodies.

• It introduces contaminants like nitrates into water.

• It reduces the water table.

How does urban development impact water quality in watersheds?

• By increasing evapotranspiration.

• By introducing point sources of contamination.

• By enhancing natural vegetation growth.

• By reducing runoff.

What is a consequence of removing natural vegetation for agriculture and urban growth?

• Increased evapotranspiration.

• Decreased runoff.

• Increased erosion and reduced water quality.

• Enhanced groundwater recharge.

What human activity can lead to waterlogging in watersheds?

• Tillage

• Irrigation

• Construction of levees

• Wetland restoration

What environmental issue can atmospheric deposition of chemicals cause in surface-water bodies?

• Increased alkalinity

• Increased water temperature

• Acidification

• Enhanced aquatic plant growth