Multiple Choice
Desert varnish is a coating on aerially exposed desert rocks that is primarily composed of ____________.
A) microcrystalline quartz
B) microcrystalline calcite
C) aluminum oxides and hydroxides
D) iron and manganese-oxides
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q6: Desert climate associated with a rain shadow
Q7: The Gobi of Mongolia is a desert
Q8: A rock that has been abraded by
Q9: Saltation of sand involves _.<br>A) spherical grains
Q10: In most deserts,the scarcity of rainfall means
Q12: During heavy rainstorms,rates of physical weathering and
Q13: Playas are places where you would expect
Q14: At 30° North latitude,at the northern edge
Q15: The Atacama of Chile is a desert
Q16: The most expansive hot deserts on Earth