August 2023 Earth Science Regents Questions 21-30 Question Preview (ID: 62071)

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During which geologic period did humans first appear on Earth?

a) Quaternary

b) Paleogene

c) Triassic

d) Permian

Approximately what percentage of potassium-40 remains in the 1.0 billion-year-old bedrock of the Hudson Highlands landscape region of New York State?

a) 10%

b) 25%

c) 60%

d) 75%

The surface bedrock at Old Forge, New York, is mostly

a) flat-lying, sedimentary rock formed during the Grenville Orogeny

b) flat-lying, sedimentary rock formed during the Acadian Orogeny

c) intensely metamorphosed rock formed during the Grenville Orogeny

d) intensely metamorphosed rock formed during the Acadian Orogeny

Which agent of erosion produced many of the large parallel grooves and scratches seen in surface bedrock across New York State?

a) mass movement

b) wind

c) running water

d) glaciers

Which process causes rock A to change into rock B?

a) melting

b) solidification

c) precipitation

d) metamorphism

Which mineral is usually present in pegmatite, phyllite, and siltstone?

a) quartz

b) garnet

c) olivine

d) pyroxene

Which mineral could be scratched by an iron nail, but not by a penny coin?

a) quartz

b) halite

c) dolomite

d) amphibole

Which graph shows the general relationship between an increase in urbanization in an area and the average annual air temperature for that area?

a) 1

b) 2

c) 3

d) 4

Which events occurred after the formation of rock layer A?

a) igneous intrusion D and faulting at E

b) deposition of sediments in rock layers B and C

c) faulting at E and deposition of sediments in rock layer C

d) formation of sedimentary rock layer B and igneous intrusion D

Which two locations on the east side of the mid-ocean ridge represent areas of reversed magnetic polarity?

a) A and B

b) B and D

c) C and D

d) E and A

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