11-1 water resources page 269. a. the water cycle 1. water is a renewable resource. why?

11-1 Water Resources

Page 269

A. The Water Cycle

• 1. Water is a renewable resource.• Why?.......

A. The Water Cycle

• 2. Water is circulated through the water cycle.

A. The Water Cycle

B. Global Water Distribution

• 1. If the earth is 71% water, why is it a limited resource?

B. Global Water Distribution

• 2. Statistics– 97% is salt water in oceans– 3% is fresh water (mostly frozen in glaciers/ice

caps)

Why is it bad to drink salt water?

C. Surface Water

• 1. is fresh water on earths land surface.

C. Surface Water

• 2. As water collects they form streams, which then connect to form rivers as river systems.

C. Surface Water

• 3. An area of land that is drained by a river is called a watershed.

D. Groundwater

• 1. is water found below the earths surface in the spaces in sediment and rock formations.

D. Groundwater

• 2. Aquifers are underground formations that contain groundwater.

D. Groundwater

• 3. Some rocks allow for groundwater to pass through dues to porosity (pores) or permeability (allow some materials through).