Geology Test #2 Review

How does freezing water cause the weathering of rocks?  The freezing water—

• keeps the rocks in place
• makes the rocks last longer
• expands cracks and breaks rocks
• causes rocks to fall in landslides

The process that breaks down rocks and other materials on Earth's surface is called

• weathering
• erosion
• soil conservation
• decomposition

How does wind abrasion work?

• Sediment is blown off a surface from wind.
• Wind-blown sediment strikes a surface.
• Wind blows large chunks of rock off a surface.
• Sediment falls off of a surface on its own.

What is mechanical weathering?

• Process through which rocks are physically broken into smaller pieces.
• Rocks are broken down through chemical changes.
• Rocks are worn away from acid in plant roots.
• Rocks broken down by machinery.

Which agents  break down earth materials?

• wind only
• earthquakes and gravity
• ice and 007
• wind, water, and ice

What are the two factors that affect the rate at which weathering occurs?

• climate and mass of rock
• climate and size of rock
• type of rock and size of rock
• type of rock and climate

wind erosion forms what type of landform?

• meander
• drumlin
• sand dune
• sand bar

Rust that forms on rocks or metal because of extended exposure to oxygen is what example of chemical weathering?

• carbon dioxide (carbonic acid)
• acid rain
• oxidation
• lichens

what type of erosion causes landslides

• wind
• waves
• water
• gravity

Sediment is________?

• rocks, plants, and fossils
• just rocks
• large rocks
• gravel,sand,silt,and clay with small pieces of rocks