Semester Review

The branch of Earth science that concerns conditions in the atmosphere is

• meteorology.
• oceanography.
• geology.
• astronomy.

The way a mineral reflects light is

• color.
• fracture.
• density.
• luster.

A scientist who studies and classifies rocks is a

• chemist.
• geographer.
• biologist.
• petrologist.

Why is natural gas found on top of petroleum?

• because its formed first
• because its formed last
• because its more dense than petroleum
• because its less dense than petroleum

The peaks of a young mountain are

• sharp and jagged.
• worn.
• rounded.
• flat.

Underwater mountain ranges are called

• subduction zones.
• trenches.
• mid-ocean ridges.
• rift valleys.

The first person to suggest the existence of atoms was

• Dalton.
• Rutherford.
• Bohr.
• Democritus.

The study of weather is called

• geology.
• oceanography.
• meteorology.
• specialist.

CO₂ is

• an atom.

• a chemical symbol.

• a chemical formula.

• an element.

Limestone and halite are examples of

• clastics.
• nonclastics.
• foliated rocks.
• unfoliated rocks.