Weathering, Erosion, Deposition, Soil

Which of the following is organic material that results from the decay of plant and animal remains?

• humus

• gravel

• R horizon

• clay

Tags

NGSS.MS-LS2-3

Which of the following is most likely to have happened in the image?

• The plant has dissolved the rock.

• The plant has eroded the rock.

• The plant has eaten away the rock.

• The plant has weathered the rock.

A cliff formed near the ocean.  Which statement best describes how this cliff formed?

• Warm air melted the rock.
• Sun rays evaporated the rock.
• Ocean waves washed away rock.
• Plant roots pushed away the rock.

Tags

NGSS.MS-ESS2-2

The diagrams shows a rock with water trapped in the cracks during the day and at night. 

Which statement best explains why this process results in weathering?

• frozen water acts as a solute
• water expands when it freezes
• the mass of water increases when it freezes
• frozen water dissolves most types of rock

Tags

NGSS.MS-ESS2-2

How do plants weather rocks?

• water in the roots causes freezing and thawing

• when roots grow into cracks of rocks and expand the rock

• when plants are blown by wind they break the rock

• Plants don't weather rocks

Tags

NGSS.MS-ESS2-2

When plants, animals, and other organisms die, they break down and become part of the soil. What is this part of the soil called?

• sand
• silt
• clay
• humus

Tags

NGSS.5-LS2-1

Soil formation begins with the weathering of_______.

• Humus

• Subsoil

• Topsoil

• Parent Rock

The layer of soil which the topsoil is found.

• Horizon A
• Horizon B
• Horizon C
• Horizon D or R

In which horizon is most of the HUMUS?

• Horizon A
• Horizon B
• Horizon C
• Horizon D or R

Tags

NGSS.MS-LS2-3

Which agent of weathering and erosion caused this formation?

• water

• wind

• gravity

• ice

Tags

NGSS.MS-ESS2-2