Watersheds Aquifers

When fertilizers enter surface water, they cause problems in 
the watershed by -

• increasing the amount of nutrients available to fish in lakes and streams.
• 
  clogging narrow streams and preventing water from flowing properly.
• raising the water level in nearby rivers to levels leading to flooding.
• causing rapid algal growth that decrease oxygen levels and choke aquatic life.

Which would increase the amount of runoff you get?

• Vegetation
• More plants
• Urban Development

What do you call the land that water flows across, under, and through on its way to a body of water?

• Tributary
• River system
• Headwaters
• Watershed

All bodies of fresh water, salt water, ice, and snow that are found above ground

• Groundwater

• Surface water

• Runoff

• Swimming pool

___________________ washes agricultural wastes, including animal wastes, fertilizers, and pesticides, into bodies of water, causing algae to grow.

• Runoff
• Peak flow
• Groundwater
• Municipal sewage

Wastes produced by agriculture, households, industry, mining, and other human activities can end up in ______________.

• groundwater
• streams and rivers
• oceans
• All of these choices

An area of permeable layer of rock or soil that holds a large amount of water in the saturated zone is called what?

• Aquifer
• Spring
• Well
• Reservoir

The water that fills lakes and rivers

• groundwater
• surface water
• water table
• saturated zone

Water stored  in cracks and pores below the Earth's surface is called:

• Groundwater
• Bogs
• Water in the ground
• surface water

What is the top of the water-filled spaces  (saturated zone) in the ground called?

• Groundwater
• Reservoir
• Water Table
• Well