Earth Science Final Exam

Which of the following correctly describes the shape of a planet's orbit?

• Ellipse
• Revolution
• Rotation

Earth's axis tilts ___, which is part of the reason that we experience different seasons.

• 90*
• 45*
• 23.5*

The Big Bang Theory occurred approximately ___ years ago while the Earth formed approximately ___ years ago.

• 14 bya, 4.6 mya
• 4.6 bya, 14 mya
• 1 bya, 2 mya

Earth's rotation affects what concept?

• Seasons
• Equinoxes
• Day/night

Earth's revolution affects what concept?

• Day
• Tides
• Year

The Ejected Ring or Impact Theory describes how the ___ formed.

• Earth
• Moon
• Solar system

How do the inner planets compare to the outer planets?

• They are smaller and more dense
• They are larger and more dense

Refer to the graph above. What is the half-life of the element shown?

• 400 days
• 39 days
• 6 days

Where did the oxygen in our atmosphere originally come from?

• animals
• Earthquakes
• Outgassing

Which principle of relative dating could you use to explain that layer B is younger than layer A?

• Uniformitarianism
• Sedimentarianism
• Superposition