June 2018 Earth Science Regents Questions 41-50 Question Preview (ID: 55023)

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A person walks along the trail from location C to location D. The person will be walking

a) downhill then uphill, only

b) downhill, then uphill, then downhill again

c) uphill then downhill, only

d) uphill, then downhill, then uphill again

The gradient between location A and location B is approximately

a) 0.04 ft/mi

b) 25 ft/mi

c) 40 ft/mi

d) 50 ft/mi

What is the contour interval on this map?

a) 25 ft

b) 50 ft

c) 150 ft

d) 250 ft

Which weather symbol would be placed on a station model to represent this weather event?

a) freezing rain

b) sleet

c) thunderstorm

d) snow

The updrafts and downdrafts represented within this cloud are primarily caused by differences in

a) altitude above sea level

b) air density

c) relative humidity

d) specific heat

In which temperature zone of the atmosphere is point A located?

a) thermosphere

b) mesosphere

c) stratosphere

d) troposphere

Based on the graph, what is the approximate number of radioactive atoms of Isotope X that are present when 8 hours of decay has occured?

a) 90

b) 115

c) 155

d) 200

Based on the graph, the half-life of this radioactive isotope is

a) 6 h

b) 9 h

c) 3 h

d) 12 h

Energy is produced in the cores of main sequence stars when

a) lighter elements undergo fusion into heavier elements

b) heavier elements undergo fusion into lighter elements

c) cosmic background radiation is absorbed

d) cosmic background radiation is released

Which star may once have been similar to our Sun in mass and luminosity?

a) Deneb

b) Spica

c) Procyon B

d) Proxima Centauri

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