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