4-19 Human Impact

Match the following descriptions with the correct type of area they describe.

• An enclosed body of water, typically lacking natural drainage.

• A natural or artificial lake without an outlet.

• Into what does a watershed drain all the water?

• A water treatment plant.

• Areas where water is stored naturally below the earth's surface.

• A common outlet such as a stream channel, a reservoir, or bay.

• An area focusing on the purification of water collected from various sources.

• Underground aquifers.

Where does the water in a watershed come from?

• It is primarily sourced from underground springs.

• It comes from rainfall or snow melts.

• It is imported from other watersheds.

• It is generated through desalination processes.

According to the pie chart, what percentage of water on Earth is available fresh water?

• 97%

• 2%

• 1%

• 3.5%

Which type of water is more prone to pollution?

• Bottled water

• Groundwater

• Distilled water

• Surface water

Where is groundwater found?

• In the atmosphere

• Underground in cracks and spaces in soil, sand, and rock

• In rivers and lakes

• In glaciers and ice caps

What does the term "permeable" refer to in the context of groundwater vocabulary?

• Rock layers with no connected pore spaces

• Rock layers or sediments that transmit groundwater freely

• A type of rock that holds no water

• A surface that is not affected by water

Match the following characteristics with the correct type of rock layer they describe.

• Characteristic of bedrock

• It has unconnected pores

• Characteristic of a poorly permeable rock layer

• It has no spaces or pores

• Characteristic of an impermeable rock layer

• It is made up of a single solid material with no gaps

• Characteristic of a permeable rock layer

• It includes spaces (pores) throughout the rock layer

What does the Water Table represent?

• The lower boundary of the Zone of Saturation

• The region where capillarity occurs

• The upper surface of the Zone of Saturation

• The area of infiltration

Can the Water Table move?

• No, it is always at a fixed level

• Yes, but only downwards

• Yes, but only upwards

• Yes, it can move up or down depending on rainfall

What is the Zone of Saturation?

• The region where water infiltrates the soil

• The region in the ground in which the pore spaces are filled with water

• The area above the water table

• The layer of impermeable bedrock