Author Question: Longitudinal dunes are: a. oriented parallel to the average wind direction. b. a type of barchan ... (Read 78 times)

littleanan · **on:** Aug 7, 2018

Longitudinal dunes are:
a. oriented parallel to the average wind direction.
b. a type of barchan dune.
c. a type of star dune.
d. crescent-shaped dunes with arms that point upwind.
e. only formed out of ice and snow.

Question 2

Barchans:
a. grow by the process of deflation.
b. are the only kind of silt.
c. are the only kind of gravel dune.
d. migrate.
e. form where there are multiple sand-transporting wind directions.