Which type of rock appears to be the most easily eroded by the river in this area?

• Limestone
• Shale
• Basalt
• Sandstone

What appears to have occurred at the area labeled B?

• Sediment was deposited on sloped ground.
• Sediment was deposited on sloped ground that later became level.
• Sediment was deposited on level ground that later tilted.
• Sediment was deposited on level ground that stayed level.

Igneous rocks are formed by -

• heat and pressure on existing rocks
• evaporation of water, leaving solids behind
• cooling and hardening of molten rock
• layers of mud on the bottom of a lake

The point from which an earthquake originates is called the -

• focus
• epicenter
• fault line
• shockwave

What is usually responsible for an earthquake?

• Pressure buildup within the mantle
• Slippage along faults within Earth's crust
• Weathering along coastlines
• Force changes from the moon pulling on Earth

Cyanite (Al₂SiO₅), quartz (SiO₂), and leucite (KAlSi₂O₆) may be grouped together because they all contain -

• aluminum
• carbon
• potassium
• silicon

While on vacation, a student visits the area around a volcano that has recently erupted. The student can expect to find samples of -

• clastic sedimentary rock
• nonfoliated metamorphic rock
• chemical sedimentary rock
• extrusive igneous rock

The folding and faulting found in the rocks of the Blue Ridge Mountains of Virginia were created by -

• collisions of continental plates
• wave action of prehistoric oceans
• the Coriolis effect
• heating and cooling of the prehistoric atmosphere

Which substance is a mixture of organic matter and weathered rock?

• Limestone
• Soil
• Schist
• Granite

Which sequence best describes the construction of a delta from the youngest formation to the oldest formation?

• A-C-B-D
• C-A-D-B
• C-A-B-D
• B-D-A-C