Hot arid and Semi arid environments

What climatic conditions do "Cold offshore currents" lead to?

• Warm air onshore

• Dry air onshore

• Heavy rainfall

• Increase in humidity

What is "Saltation" in the context of sediment transport?

• Rolling larger particles

• Particles light enough to be carried by strong winds

• A rolling sand particle gaining sufficient velocity to leave the sand surface

• Describes sediments that are carried aloft without touching the ground

What is "Savana"?

• A zone of dry, descending air at the poleward side of the Hadley Cell

• A transition zone between the fully humid tropical environments and the fully arid deserts

• Continuous movement of water caused by the wind

• A climate that is characteristic of a continental area

What is an Erg desert?

• A stoney surfaced desert

• A sandy surfaced desert

• A desert with mushroom-shaped rock features

• A desert with wind-eroded rocks

What are Yardangs?

• Wind-eroded rocks where vertical layers of hard and soft rocks lie aligned to the direction of the prevailing wind

• Smaller versions of mesas

• Any isolated hills that stand prominently over a level surface

• Wind-eroded rocks in which different resistance of rock strata lie horizontally

What are Alluvial Fans?

• Wind-eroded rocks in which different resistance of rock strata lie horizontally

• Cone of sediment occurring between a mountain and a lowland plain

• Gently sloping areas of bare rock

• A lowland area/plain generally located at the base of a mountain

What are Pediments?

• Cone of sediment occurring between a mountain and a lowland plain

• Gently sloping areas of bare rock

• A lowland area/plain generally located at the base of a mountain

• Formed by a number of alluvial fans merging

What are Salt Lakes also known as?

• Playas

• Inselbergs

• Mesas

• Buttes

What are Inselbergs?

• Plateau-like features with steep sides at their edges

• Smaller versions of mesas

• Any isolated hills that stand prominently over a level surface

• A period of increased rainfall during a past climate

What is the main purpose of Diguettes?

• To catch rain and allow the water to seep into the soil.

• To increase the soil temperature.

• To reduce the amount of sunlight.

• To increase the amount of rainfall.