How Is Desert Pavement Formed

question 32

Multiple Choice

How is desert pavement formed?

• A)Deflation removes the coarse fragments leaving behind a layer of loess.
• B)Runoff and deflation carry off the silt and clay, leaving coarser particles behind.
• C)Alluvial fans are eroded to form inselbergs with rocky surfaces.
• D)Groundwater in an alluvial fan evaporates, leaving behind a surface layer of hard- baked mud.

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Definitions:

Lichens

Symbiotic organisms made up of a fungus and either an algae or a cyanobacteria, living together and often found on rocks, trees, and soil.

Oxalic Acid

A strong organic acid found in many plants and vegetables, commonly used as a cleaning agent and rust remover.

Hydrogen Bond

A weak bond in water that forms between one molecule’s hydrogen atom and another molecule’s oxygen atom.

Limestone Cave

A natural underground space formed by the dissolution of limestone by acidic water, often featuring stalactites and stalagmites.