EOG Review 1

Where would evidence of earthquakes most often be found throughout Earth's history?

• in dry riverbeds

• along fault lines

• along the ocean shoreline

• in desert sand dune formations

Which characteristic of carbon-14 dating helps scientists determine the approximate time a species became extinct?

• Carbon-14 is not present in more recent fossils.

• Carbon-14 increases at a constant rate over time

• Carbon-14 decreases at a constant rate over time

• Carbon-14 can only be found in fossils of a certain period

Why are index fossils good clues for identifying when rocks were formed?

• They are easy to form in rock.

• They are difficult to form in rock.

• They only existed during specific periods of time.

If a fault cuts through multiple layers of rock, which is most likely true?

• An earthquake happened after the layers formed.

• An earthquake happened before the layers formed.

• An earthquake happened at the same time the layers formed.

• The timing of an earthquake is unrelated to when the layers formed.

Why do plankton not grow in the deep ocean?

• because sunlight does not reach the deep ocean

• because too many animals eat it before it can grow

• because there are not enough dissolved gases to support it

Scientists notice that many fish are dying in a local lake. Which onsite water quality data would they most likely gather to determine the cause of the fish kill?

• arsenic and cyanide levels

• water level and surface area

• biodiversity and water depth

• dissolved oxygen and temperature

Which factor most influences local water availability?

• runoff

• infiltration

• precipitation

Which is an area of land that all drains to one place?

• river

• aquifer

• reservoir

• watershed

What most directly affects the amount of dissolved oxygen in a body of water?

• pH

• salinity

• temperature

• turbidity

When space is limited in an ecosystem, how is bird population most likely affected?

• competition decreases

• survival rate increases

• availability of food increases

• availability of nesting spots decreases