Land, Water, and Human Interactions

Elevation on a topographic map is shown with

• Streets

• Line colors

• Dashed lines

• Contour lines

Sediments are NOT

• Oil mixed in river water

• Earth materials in a river

• Nutrients in a river

• Salt in a river

Water on earth is found primarily in

• Lakes

• Ice caps

• The air and soil

• The oceans

In the natural world, which liquid dissolves more substances than any other?

• Carbon dioxide

• water

• Ethanol

• Oil

Which of the following measurements is NOT a water quality indicator?

• Dissolved solids

• Turbidity

• Dissolved oxygen

• Human population

An excess of nutrients in water can be the result of

• Decrease in water quality

• Farming practices

• Increase in water filtering

• All of the above

Excess nutrients in water are made up of

• Fertilizer and calcium chloride

• Sodium chloride and calcium chloride

• Sodium chloride and nitrogen

• Nitrogen and phosphorus

Dead zones are formed when water has

• Too many nutrients

• Too few insects

• Too many dead insects

• Too little nutrients

A negative consequence of building next to a river is the

• Disruption of erosion and deposition

• Increased flooding risk

• Land shrinking

• All of the above

Which of the following is the best example of human impact of Earth’s systems?

• A hydroelectric dam on a river

• A log jam on a river

• A beaver dam on a river

• Flooded homes alongside a river