Astro 110 - The Solar System » Fall 2019 » Homework 8 Quiz

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Question #1
Which of the following is NOT one of the geologic processes that occurs on a terrestrial planet?
A.   slow surface evolution
B.   flooding
C.   differentiation
D.   fusion of hydrogen to helium
E.   flooding
Question #2
Which of the following is a primary characteristic of greenhouse gases?
A.   They can completely trap forms of light in the atmosphere.
B.   They absorb some forms of light but allow other forms of light to pass through.
C.   They absorb more light than they give off.
D.   They concentrate sunlight as it travels through the atmosphere.
E.   They absorb more molecules in the atmosphere than they give off.
Question #3
Which of the following is not produced by plate tectonics?
A.   the Appalachian Mountains
B.   midocean rifts
C.   the ring of fire
D.   rift valleys
E.   Earth's magnetic field
Question #4
The central regions of Earth's core are a solid because
A.   the composition at the center of the core is lower in iron.
B.   convection does not extend all the way to the center of the core.
C.   the magnetic field cannot penetrate into the center of the core.
D.   the pressure at the center raises the melting point.
E.   Earth initially formed from solid particles in the solar nebula.
Question #5
The main greenhouse gases in the atmosphere of the terrestrial planets are:
A.   methane and ozone
B.   carbon dioxide and water vapor
C.   oxygen and nitrogen
D.   hydrogen and helium
Question #6
How are scientists able to study the interior of the Earth?
A.   They monitor the changes in the Earth magnetic field.
B.   They use X-rays to map out the interior.
C.   They study seismic waves that travel through the interior of the Earth.
D.   They drill down to individual layers of interest
Question #7
The Earth has a magnetic field because:
A.   the outer part of the core is liquid and has convection currents.
B.   the core is made of metallic material such as iron and nickel.
C.   the Earth rotates fairly quickly on its axis.
D.   All of the above.
Question #8
The fact that Earth’s interior is differentiated suggests that:
A.   it has both a liquid and solid core
B.   it was liquid at some point in the past
C.   only the crust is solid; the rest of Earth’s interior is liquid
D.   it formed first from denser material and then afterward accreted lighter material

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