Earth's History & Geologic Time Review

How much area does our solar system take up out of the universe?

• It takes up most of the universe
• It takes up a really tiny area
• It grows and shrinks so it varies
• It takes up a very large area 

According to the law of superposition, which layer is the youngest?

• A
• B
• C

Which division on the geologic time scale is the shortest?

• epoch
• era
• eon
• period

If an index fossil is found in two rock layers that are separated by an ocean, what do you know about the relationship between the two rock layers?

• they are about the same age
• they used to be in the same area
• the are made of the same kind of rock
• the rock layers are unrelated

Which type of dating method can be used on rock layers by applying the Law of Superposition?

• relative dating
• absolute dating
• radioactive dating
• radiometric dating

• 1
• 2
• 3
• 5

Starting from the furthest away from us, which is the correct galactic address for our solar system?

• Virgo Supercluster: Local group: Milky Way
• Virgo Supercluster: Milky Way: Local Group
• Local Group: Milky Way: Virgo Supercluster
• Virgo Supercluster: Local Group: Andromeda

Describe the movement of our solar system.

• It stays in one place but the planets rotate
• It stays in one place 
• The entire solar system orbits the center of the milky way 
• The solar system is moving out of the milky way 

Which of the following members of the solar system is the oldest?

• The moon
• The earth 
• The sun
• Pluto 

Which nebula "birthed" our solar system?

• The ant nebula
• The pillars of creation
• The cat-eye nebula 
• The solar nebula