Geo 101 Chpt 1

In the heliocentric model.

• Earth orbits around the Sun

• the Sun orbits around Earth

• Earth is a stationary planet

• Mercury and Venus orbit around the Sun, but all other planets orbit around Earth

Among the choices below, the best estimate of the age of the Universe is years old.

• 5 million

• 6 billion

• 14 billion

• 100 billion

The big bang theory states that.

• all stars will end their lives explosively as supernovas

• Earth formed through a series of violent collisions

• meteors were responsible for the extinction of the dinosaurs

• all matter in the Universe was once confined to a single point.

Strong evidence that the Universe is expanding comes from the fact that the light emitted from distant galaxies appears to be.

• red-shifted

• blue-shifted

• green-shifted

• none of the above

Aside from Earth, the terrestrial planets are.

• Mars, Mercury, and Venus

• Mars, Venus, and Jupiter

• Jupiter, Saturn, Uranus, and Neptune

• Mars and Saturn

The gas-giant, or Jovian, planets are.

• Mars, Mercury, and Venus

• Mars, Venus, and Jupiter

• Jupiter, Saturn, Uranus, and Neptune

• Mars and Saturn

The branch of science that studies the structure and history of the Universe is.

• cosmetology

• scientology

• cosmology

• universalism

All objects in the Solar System are in orbit around.

• Earth

• Jupiter

• the Sun

• the Kuiper Belt

Our Sun belongs to a galaxy known as.

• Andromeda

• Cepheus

• the Milky Way

• the Stratosphere

In agreement with the Big Bang theory, our Universe is.

• expanding

• contracting

• static (unchanging)