WorksheetsRegents Earth Layers
Total questions: 10
Worksheet time: 20mins
Name
Class
Date
1.
The diagram represents a model of Earth’s surface and internal structure. Letters A, B, C, and D represent four different layers. Some depths below Earth’s surface are shown. Which Earth layer is inferred to be composed of solid nickel and iron?
a)
A
b)
B
c)
C
d)
D
2.
In which area of Earth’s interior is the pressure most likely to be 1.2 million atmospheres?
a)
Asthenosphere
b)
Stiffer Mantle
c)
Inner Core
d)
Outer Core
3.
At which depth below Earth’s surface is the interface between Earth’s outer core and stiffer mantle located?
a)
700 km
b)
2900 km
c)
2000 km
d)
5100 km
4.
Scientists have classified Earth’s interior into the known layers based primarily on evidence gained by studying
a)
deep drill cores
b)
volcanic eruptions
c)
gravity measurements
d)
earthquake seismic waves
5.
According to the Earth Science Reference Tables, as the depth within the Earth's interior increases, the
a)
density, temperature, and pressure increase
b)
density, temperature, and pressure decrease
c)
density and temperature increase, but pressure decreases
d)
density increases, but temperature and pressure decrease
6.
Compared to oceanic crust, continental crust is generally
a)
older and thinner
b)
older and thicker
c)
younger and thinner
d)
younger and thicker
7.
According to the plate tectonics theory, the Peru-Chile Trench and the Andes Mountains formed along the west coast of South American because the South American Plate
a)
collided with the Nazca Plate
b)
collided with the North American Plate
c)
slid away from the Nazca Plate
d)
slid away from the North American Plate
8.
When two tectonic plates collide, oceanic crust usually subducts beneath continental crust because oceanic crust is primarliy composed of igneous rock that has
a)
low density and is mafic
b)
low density and is felsic
c)
high density and is mafic
d)
high density and is felsic
9.
The cross-section shows the direction of movement of an oceanic plate over a mantle hot spot, resulting in the formation of a chain of volcanoes labeled A, B, C, and D. The geologic age of volcano C is shown. What are the most likely geologic ages of volcanoes B and D?
a)
B is 5 million years old and D is 12 million years old
b)
B is 12 million years old and D is 6 million years old
c)
B is 9 million years old and D is 9 million years old
d)
B is 10 million years old and D is 4 million years old
10.
The movement of tectonic plates is inferred by many scientists to be driven by
a)
tidal motions in the hydrosphere
b)
density differences in the troposphere
c)
convection currents in the asthenosphere
d)
solidification in the lithosphere
100 %
