Tectonism
Volcanism
Erosion
Atmospheres
Greenhouse Effect
100
This is the cause of all tectonic activity on a planet's surface.
What is interior heat?
100
_______ has the most volcanism, but ______ has active volcanoes.
What is Venus and Earth?
100
Three environmental factors that cause the break down of rock known as weathering.
What are water, wind, and solar radiation?
100

Reasons why the terrestrial planets lost their primary atmospheres of Hydrogen and Helium.

What are too hot and too small? High temps near sun cause light molecules to reach escape velocity. Small masses mean not enough gravity to hang on to light gases. Also why the moon and Mercury lost secondary atmospheres.

100

Primary component of Venus' atmosphere and a greenhouse gas.

What is Carbon dioxide? Venus' atmosphere also contains a lot of water vapor, because too hot for liquid water. Water vapor is also a greenhouse gas.

200

The flow of hot material rising and cool material sinking that causes movement of the tectonic plates on earth.

What is convection?

200
Lava flows on the moon that smoothed its surface.
What are Maria?
200
How erosion is different from weathering, even though it is also caused by wind and water.
What is movement of weathered material? Erosion by wind or water carries material from one place to another, wearing down high features and filling in low places.
200

How trapped gases, like carbon dioxide, were released from the interior of the early earth.

What are volcanoes?

200

An energy balance between visible light received from the sun and ______ determines a planet surface temperature.

What is infrared light radiated as heat?

300
These are created or destroyed when tectonic plates collide on Earth.
What are surface features? Created: mountains, volcanoes, trenches, lava flows Destroyed: craters, islands, other land forms (review lecture-tutorial)
300
This mountain on Mars is the largest in the solar system.
What is Olympus Mons? It is a volcano.
300
Some surface features of planets with atmospheres and wind.
What are smooth surfaces and dunes? Earth, Venus, and Mars all have wind and dust storms.
300

Source of water and light gases in secondary atmospheres.

What are comets and asteroids from outer solar system? Impacts brought volatiles from outer disk to surface on terrestrial planets.

300

This is absorbed by greenhouse gases like water and CO2 in the atmosphere.

What is Infrared Radiation?

400
Features on Mercury caused by the the planet cooling and shrinking.
What are scarps (cliffs)?
400
Evidence that some volcanoes on Mars are as old as the early solar system.
What are craters? They have craters on top of them indicating that they formed during the early solar system when there were still lots of impacts.
400
Planets that have been significantly changed by liquid water either now or in the past.
What are Earth and Mars? Venus may have had liquid water, but we don't see things like canyons and river valleys as on Mars and Earth.
400

Causes ammonia and other gases to break down, creating a nitrogen rich atmosphere.

What is ultraviolet light from the sun?

400

What Venus and Earth would be like without the greenhouse effect.

What is colder? Venus would be about 400 degrees colder. Earth about 30.

500
Planet where surface features may be created by hot spots and/or places where the crust collapses.
What is Venus? Hot spots are where hot interior material breaks through the surface. Venus may also have tectonism where surface material mixes easily with hot material below surface.
500
Evidence that a planet has a hot interior?
What are features created by tectonism or volcanism? Fewer craters and more smooth surfaces.
500
Places where water ice exists other than earth.
What are Mars (poles and under surface), Moon (under surface), possibly Mercury?
500

Reason Earth's atmosphere contains oxygen.

What is life? Plants use CO2 and make oxygen.

500
Infrared heat trapped by the greenhouse gases in the atmosphere is re-emitted and goes here.
What is the planet surface and space? Absorbed IR light doesn't stay in the atmosphere but most is absorbed by the planet making it hotter and some is also radiated out into space.
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