June 2023 Earth Science Regents Questions 21-30 Question Preview (ID: 62076)

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The fossil Mucrospirifer is considered to be an index fossil because it existed over a

a) small geographic region for a long period of time

b) small geographic region for a short period of time

c) large geographic region for a long period of time

d) large geographic region for a short period of time

Compared to Earth’s outer core, the inner core properties are inferred to be

a) less dense and a solid

b) less dense and a liquid

c) more dense and a solid

d) more dense and a liquid

A seismic station 4000 kilometers from the epicenter of an earthquake records the arrival time of the first S-wave at 1:05:40 p.m. At what time did the first P-wave arrive at this station?

a) 12:58:40 p.m.

b) 1:00:00 p.m.

c) 1:05:40 p.m.

d) 1:11:20 p.m.

The presence of these fossils in the outcrop indicates that in the past, this region was most likely covered by

a) desert sand

b) ocean water

c) glacial ice

d) molten rock

The age of the igneous rock is

a) older than rock layers 1 and 2

b) the same age as rock layer 3

c) older than rock layer 3

d) younger than rock layers 4, 5, and 6

What factor most likely causes these different stream drainage patterns?

a) age of bedrock

b) bedrock structure

c) types of fossils found in the bedrock

d) temperature variations in the bedrock

This rock slide is most likely an example of

a) mass movement due to prolonged periods of heavy traffic

b) mass movement following prolonged periods of heavy rain

c) abrasion by prolonged exposure to moving ice

d) abrasion following prolonged exposure to wind action

The Mariana Trench is Earth’s deepest oceanic trench. This trench formed as the Pacific Plate was

a) overriding the Philippine Plate

b) overriding the Eurasian Plate

c) subducting under the Philippine Plate

d) subducting under the Eurasian Plate

In which bedrock type and location can this magnetic pattern most likely be observed?

a) igneous bedrock at the East Pacific Ridge

b) igneous bedrock at the Tasman Hot Spot

c) sedimentary bedrock at the East Pacific Ridge

d) sedimentary bedrock at the Tasman Hot Spot

Compared to the thickness and density of the continental crust, the relative thickness and density of Earth’s oceanic crust are

a) thinner and less dense

b) thinner and more dense

c) thicker and less dense

d) thicker and more dense

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