EOG Review Grade 8

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• 97.436%
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In which state and location can most of Earth’s freshwater be found? 

• as a solid underground
• as a liquid in oceans and estuaries
• as a solid in icebergs and glaciers
• as a gas in the atmosphere

As the temperature of a body of water increases, which factor(s) will be most affected?

• turbidity
• dissolved oxygen
• nitrates and phosphates
• pH and nitrates

The Pamlico Sound is the largest estuary in North Carolina. The freshwater from rivers mixes with ocean water along with the sediments to form the estuary. Which factor makes the estuary an important part of the ecosystem?

• It helps decrease sand deposition along the coast.
• It helps maintain the minerals in the oceans. 
• It creates healthy conditions for the growth of plant and animal life
• It causes the formation of a delta at the mouth of the river. 

The bacteria that transmits bubonic plague causes fever, headache, vomiting, swelling of lymph nodes, and even death in extreme cases in humans. When a flea bites an infected rat, the flea becomes infected with the bacteria. When the rat dies from the plague, the flea must find a new source of nutrients. Unharmed by the bacteria, the flea can then bite humans and transmit the bacteria to them. What role does the flea play in the spread of the bubonic plague? 

• autotroph 
• vector
• predator 
• herbivore

• Lakes P and Q
• Lakes Q and S 
• Lakes Q and R
• Lakes P and S

• age
• century
• decade
• period

• The Archaeopteryx could not fly very high.
• The Archaeopteryx may have been an ancestor of modern-day birds.
• The Archaeopteryx was an omnivorous animal.
• The Archaeopteryx used to build its nest in trees

• A
• B
• C
• D

Blastomycosis, an infection caused by breathing microscopic spores from the air, produces flu-like symptoms. The infectious agent is commonly found in moist soils and decomposing matter, such as wood and leaves. What type of causative agent likely causes blastomycosis? 

• algae 
• fungi
• parasites 
• viruses