8.E.1.1-1.4 Earth Systems, Structures and Processes NC EOG Review

Which will most likely result if there is increased upwelling in a coastal area?

• more aquatic life

• less nutrients in the water

• higher water temperatures

• fewer nitrates

Which best determines the health of a lake used as a source of freshwater?

• its depth and width

• its temperature and pH

• its location and depth

• its temperature and depth

Why is water from an aquifer more likely to be cleaner than water from other sources?

• because it forms where fresh and salt water meet

• because it receives water directly from precipitation

• because it rises to the surface near the ocean

• because pollutants are filtered by rock and soil deep within Earth

In which oceanic zone do clams and crabs survive by burrowing in the sand?

• intertidal

• deep ocean

• open ocean

• oceanic

If a body of water has high turbidity levels, what can most likely be concluded?

• It has a low pH.

• It is unsafe to drink.

• It is too hot to drink.

• It contains a lot of chemicals

Which best describes the characteristics of a river basin?

• the land drained by a river and its tributaries

• the land formed when rivers create estuaries and marshes

• the land at the mouth of a river where water flows into the ocean

• the land formed as a result of a river flooding

Which factors can have the greatest effect on the health of a river system?

• type of soil and salinity

• nitrate levels and turbidity

• human consumption and pH

• natural disasters and tidal changes

In the United States, which is responsible for ensuring the safety of the country’s drinking water?

• Environmental Protection Agency (EPA)

• Food and Drug Administration (FDA)

• National Oceanic and Atmospheric Administration (NOAA)

• Center for Disease Control (CDC)

If your community was planning to build a new sanitary landfill, what would be the most important environmental consideration in locating the landfill?

• cost of the land

• location of the groundwater

• proximity to an industrial park

• accessibility to a major highway

How would excessive increases in nitrate and phosphorous concentration affect freshwater systems?

• It would cause excessive algal blooms.

• It would cause increased dissolved oxygen.

• It would cause increased water clarity.

• It would cause extremely cold water.