MSCI 112 EXAM 1 QUESTIONS VERIFIED ANSWERS
Which of the following statements is false? - answers - the crust is denser than the
mantle
Which of the following regions in earth consists primarily of olivine and pyroxene? -
answers - the upper mantle
The temperature at the center of earth is approximately - answers - 5000 degrees
celsius
Which of the following statements is false? - answers - s waves slow down as they
travel through the mantle
As seismic waves travel through earth, they generally - answers - curve upward
Overtime, the size of the inner core will_____ and the size of the outer core will_____ -
answers - grow; shrink
Geologists have formulated a simple mathematical equation that can predict the depth
of oceans. According to their equation, on what does the water depth primarily depend?
- answers - age of the seafloor
The p wave shadow extends from roughly___ to roughly___distance from an
earthquakes focus - answers - 100-140 degrees
If earths magnetic field disappeared, then - answers - the atmosphere would be blown
away by the solar wind
The graphical curve that describes how temperature changes with depth in the earth is
called the ___________. - answers - geotherm
Magma is produced by decompression melting at which of the following - answers -
spreading centers
New lithosphere is created - answers - at mid-ocean ridges
The most common rock-forming minerals in the crust are - answers - silicates
Which of the following is not associated with convergent plate boundaries - answers -
spreading centers
Where would you expect to find the largest crystals in a lava flow - answers - near or
just below the center of the flow
Which of the following statements is false? - answers - the crust is denser than the
mantle
Which of the following regions in earth consists primarily of olivine and pyroxene? -
answers - the upper mantle
The temperature at the center of earth is approximately - answers - 5000 degrees
celsius
Which of the following statements is false? - answers - s waves slow down as they
travel through the mantle
As seismic waves travel through earth, they generally - answers - curve upward
Overtime, the size of the inner core will_____ and the size of the outer core will_____ -
answers - grow; shrink
Geologists have formulated a simple mathematical equation that can predict the depth
of oceans. According to their equation, on what does the water depth primarily depend?
- answers - age of the seafloor
The p wave shadow extends from roughly___ to roughly___distance from an
earthquakes focus - answers - 100-140 degrees
If earths magnetic field disappeared, then - answers - the atmosphere would be blown
away by the solar wind
The graphical curve that describes how temperature changes with depth in the earth is
called the ___________. - answers - geotherm
Magma is produced by decompression melting at which of the following - answers -
spreading centers
New lithosphere is created - answers - at mid-ocean ridges
The most common rock-forming minerals in the crust are - answers - silicates
Which of the following is not associated with convergent plate boundaries - answers -
spreading centers
Where would you expect to find the largest crystals in a lava flow - answers - near or
just below the center of the flow
