Earth Science Chapter 7 Test- Weathering, Erosion, and Soil

Topsoil has the MOST humus because

• it has lots of sand
• a.  most living things die on or near the surface forming humus.
• a.  it is mostly weathered rock.

What is the difference between weathering and erosion?

• a.  erosion is the support and nutrients of plant growth; weathering breaks down rocks to create soil
• a.  erosion is the movement of sediment and rocks to new places; weathering breaks down rocks to create soil
• a.  erosion stops rocks from moving to new places; weathering puts rocks together to create soil

Rain washing away soil from a hillside is an example of what?

• Weathering

• Erosion

• Deposition

• Compaction

Tags

NGSS.MS-ESS2-2

Caves being formed by acid rain dissolving underground limestone are examples of what?

• Chemical Weathering

• Erosion

• Deposition

• Mechanical Weathering

Tags

NGSS.MS-ESS2-2

Water getting into cracks, freezing, and breaking the rocks or pavement apart is an examples of what?

• Mechanical Weathering

• Erosion

• Deposition

• Chemical Weathering

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NGSS.MS-ESS2-2

What is the major cause of weathering and erosion?

• wind
• ice
• glaciers
• moving water

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NGSS.MS-ESS2-2

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.

Tags

NGSS.MS-ESS2-2

If the same type of rock were placed in a rainforest, desert, a forest in Tennessee, and the North Pole, in which area would the rock weather the fastest?

• rainforest
• desert
• North Pole
• forest in Tennessee

Tags

NGSS.MS-ESS2-4

As you were climbing a mountain, you noticed that rocks were crumbling below your feet and moving down the mountain. What 2 processes did you observe?

• Weathering and erosion
• Erosion and deposition
• Abrasion and chemical weathering
• Abrasion and ice wedging

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

Your teacher filled a box with sand. She put a fan at one end and turned the fan on. The sand was blown to the opposite side of the box and collected at that side. What processes was the teacher demonstrating?

• Weathering and erosion
• Weathering and deposition
• Erosion and deposition
• Chemical and mechanical weathering

Tags

NGSS.4-ESS2-1