Author Question: Haboobs: A) do not occur more than once or twice a year. B) are usually only a few meters high. ... (Read 43 times)

captainjonesify · **on:** Jul 14, 2018

Haboobs:

A) do not occur more than once or twice a year.
B) are usually only a few meters high.
C) are dust storms triggered by intense thunderstorms.
D) never occur outside of Northern Africa.

Question 2

Ninety percent of our atmosphere lies below an altitude of about:

A) 31 km. B) 65 km. C) 6 km. D) 16 km. E) 100 km.