WorksheetsES 7.2 Formative
Total questions: 10
Worksheet time: 7mins
Although there is little rain in desert regions, desert streams are known for dangerous _______ after heavy rains.
flash floods
drainage
erosion
A cone of debris dumped at the base of mountains by running water.
(a)
Shallow lakes on a basin floor that last only a few days or weeks before evaporation and infiltration cause them to disappear.
(a)
Most desert streams are temporary. Two examples of permanent desert streams are the Nile River in central Africa and the _____ River in the southwest United States.
Colorado
Missouri
Mississippo
Arkansas
The lack of well-developed soils and abundant plant life allows mechanical weathering agents to break down and transport rocks in deserts.
true
false
Most desert streams eventually reach the ocean.
true
false
The feature shown in the bottom center of this picture is an example of a(n)
alluvial fan
playa lake
flash flood
moraine
Most of the time, stream channels in deserts remain dry.
true
false
Many desert rocks contain (a) , which oxidize and produce the rust-colored stain that tints desert landscapes like these rock formations in Bryce Canyon National Park.
Although both occur in deserts, which is more dominant in shaping desert landscapes?
mechanical weathering
chemical weathering
