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Eighth Grade (Grade 8) Geomorphology Questions

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Grade 8 Geomorphology
Which agent of erosion deposits hills of unsorted sediments?
  1. winds
  2. streams
  3. ocean waves
  4. glaciers
Grade 8 Geomorphology
When rocks are exposed to air, water, or ice and breaks into pieces
  1. limestone
  2. weathering
  3. cementation
  4. compaction
Grade 8 Geomorphology
Which of these is an example of chemical weathering?
  1. Animal action
  2. Freezing and thawing
  3. Abrasion by rock carried by wind water or ice
  4. Acid rain
Grade 8 Geomorphology
Which activity demonstrates chemical weathering?
  1. abrasion of a streambed by tumbling rocks
  2. dissolving of limestone by acid rain
  3. freezing of water in the cracks of a sidewalk
  4. grinding of talc into a powder
Grade 8 Geomorphology
Which of these is the definition of landslide?
  1. Slow down slope movement
  2. Rapid movement of rock and soil
  3. Mass Movement - moves rock and soil down a slope
  4. Weak layers of rock slide down a slope as a single unit
Grade 8 Geomorphology
Which of these is an example of mechanical weathering?
  1. Carbonation - rain mixes with CO2
  2. Heating and cooling
  3. Oxidation - combining with oxygen, rust
  4. Plant and fungal acids
Grade 8 Geomorphology
Which of these is an example of mechanical weathering?
  1. Carbonation - rain mixes with CO2
  2. Animal action
  3. Oxidation - combining with oxygen, rust
  4. Plant and fungal acids
Grade 8 Geomorphology
Which of these is an example of mechanical weathering?
  1. Oxidation - combining with oxygen, rust
  2. Root pry
  3. Sulfuric acid - burning from acid rain
  4. Plant and fungal acids
Grade 8 Geomorphology
Which of these is the definition of slump?
  1. Movement of weathered material
  2. Dry sediment mixes with heavy rains
  3. Weak layers of rock slide down a slope as a single unit
  4. Sediment is dropped by the agents or erosion
Grade 8 Geomorphology
A landscape region has an average annual temperature of 0°C and an annual precipitation of 100 centimeters. Which types of weathering and erosion would have the greatest effect on the landscape of this region?
  1. frost action and stream erosion
  2. slow mass movement and glacial erosion
  3. glacial erosion and chemical weathering
  4. rapid mass movement and wind action
Grade 8 Geomorphology
Which of these is the definition of creep?
  1. Weak layers of rock slide down a slope as a single unit
  2. Sediment is dropped by the agents or erosion
  3. Slope down slope movement
  4. Dry sediment mixes with heavy rains
Grade 8 Geomorphology
What occurs when a rock is crushed into a pile of fragments?
  1. the total surface area decreases and chemical weathering changes
  2. the total surface area increases and chemical composition changes
  3. the total surface increases and chemical composition remains the same
  4. the total surface area decreases and chemical composition remains the same
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