Watersheds Human Impacts

Water occurring in a stream, lake, river, reservoir, estuary, wetland or the ocean.

• Drainage Divide

• Surface Water

• Watersheds

A basin-like formation defined by highpoints and divides that descends into lower elevation is a/an

• Aquifer

• Permeable rock layer

• Watershed

• Water Table

Most of the water on Earth is found in _

• Glaciers

• Oceans

• Lakes

• Rivers

Salinity is the amount of ____________ found in water.

• Salt

• Calcium

• Oxygen

• Hydrogen

An aquifer must contain a permeable layer of rock, sand, or soil. Which is true about a permeable rock layer?

• It contains little pore space.

• There are pores, but they aren’t connected.

• There are pores, and they are connected.

• The water cannot move freely.

When trash is dumped into the water ways, it mixes physically with the water. What type of pollution is this?

• Agricultural

• Chemical

• Surface

• Thermal

The type of pollution where the temperature levels rise causing a decrease in dissolved oxygen is called_________ pollution.

• Agricultural

• Chemical

• Surface

• Thermal

A place in the ground where water flows to the surface without being pumped is called an artesian well. What force moves the water to the surface?

• Gravity

• Friction

• Air Resistance

• Tension

When pollutants are introduced into the environment over a large area, it is called ________?

• Point Source Pollution

• Non-Point Source Pollution

Which type of water is more susceptible to pollution?

• Surface Water

• Ground Water