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

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