JMS W.E.D.S. Review

What type of weathering causes the mineral content of a rock to change through chemical reactions?

• chemical weathering

• mechanical weathering

• ice wedging

• animal actions

Which environment created from deposition is being shown in this picture?

• a river
• a beach
• a longshore current
• a marsh

Which soil layer (shown by the letters in the diagram) mostly contains partly weathered rock?

• A
• B
• C
• D

What is the most important agent of chemical weathering?

• plant roots
• oxygen
• carbon dioxide
• water

Which soil horizon is formed when clay and other minerals leach down from topsoil?

• A Horizon
• B Horizon
• C Horizon
• Bedrock

The rock shown has been broken by the repeated freezing and melting of ice. What agent has most likely weathered this rock?

• ice wedging
• freezing and thawing
• abrasion
• oxidation

What agent of weathering would you expect to find in surrounding areas of this factory?

• freezing and thawing
• oxidation
• acid rain
• water

What is an advantage to the formation of a barrier island on other natural landforms?

• Barrier islands prevent non-native species of fish from inhabiting local lagoons.
• Barrier islands protect tourists from dangerous rip tides and tidal waves.
• Barrier islands absorb the energy of waves and wind from storms, preventing beach erosion.
• Barriers islands offer little to no advantage. They just form from deposition.

What can be added to the soil to increase its fertility?

• earthworms
• tree roots
• bacteria
• humus

A rock with a high iron content has become reddish in color, as well as turning soft and crumbly. It most likely has been weathered by what?

• oxygen
• water
• trees
• acid rain