Unit 2 EOG Questions E.1.1, E.1.2, E.1.3, E.1.4

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 the Earth

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

• oceanic 

• intertidal 

• deep ocean

• open ocean

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 factor 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)

• Canter for Disease Control (CDC)

Which will MOST LIKELY result if there is increased up-welling in a coastal area? 

• more aquatic life

• less nutrients in the water

• higher water temperatures

• fewer nitrates