CBA Practice 1 Question Preview (ID: 55428)
3rd CBA Practice.
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What is the correct order (starting with the hottest) of Earth's layers?
a) inner core, outer core, mantle, crust
b) mantle, outer core, inner core, crust
c) crust, outer core, inner core, mantle
d) outer core, inner core, crust, mantle
The layer of Earth that is the solid outermost portion and is part of the mantle and crust is called _______.
a) outer core
b) asthenosphere
c) lithosphere
d) inner core
When compared to the other layers of Earth, which layer has the lowest density?
a) mantle
b) inner core
c) crust
d) outer core
The continental crust floats on top of the mantle because the crust is
a) made up of oxygen which is a light element
b) made of liquid material
c) separated from the mantle by a layer of water
d) less dense than the mantle
Which section of Earth is composed primarily of liquid metal?
a) crust
b) inner core
c) outer core
d) mantle
What best describes the mantle of Earth?
a) a solid layer made of iron and nickel
b) the smallest layer that is made up of molten rock
c) the largest layer between the crust and outer core
d) a thin layer that is located on the surface
What has to happen first for sedimentary rock to form?
a) exposure to heat or pressure
b) a landslide
c) pieces of rock need to be pressed into layers
d) a volcanic eruption
The shapes and landforms of the earth’s crust can be explained by the movement of the tectonic plates. Which of the following best explains how mountains are created?
a) Tectonic plates collide at convergent boundaries causing the mantle to push upward.
b) Tectonic plates collide at divergent boundaries causing the crust to push upward.
c) Tectonic plates slide past each other at transform boundaries causing the crust to push upward.
d) Tectonic plates collide at convergent boundaries causing the crust to push upward.
Which event most likely takes place as the result of crustal movement along transform boundaries?
a) volcanic activity
b) trenches
c) earthquakes
d) mountain building
Which geologic process most likely caused the formation of the Mount St. Helens Volcano?
a) diverging boundaries
b) converging boundaries
c) rift zones
d) transform faults
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