The aurora borealis occurs
A. in the upper atmosphere.
B. in the lower atmosphere.
C. in cycles that match solar cycles.
D. mainly in semi-tropical regions.
Answer: A
Environmental & Atmospheric Sciences
You might also like to view...
Where are most comets thought to reside? What eventually becomes of comets that orbit close to the Sun?
What will be an ideal response?
Environmental & Atmospheric Sciences
Winds that blow from the north are called _______________ winds
Fill in the blank(s) with correct word
Environmental & Atmospheric Sciences
The driest desert in the world is the ________
A) Sahara B) Gobi C) Atacama D) Kalahari E) Simpson
Environmental & Atmospheric Sciences
Which process forms a'a lava formations?
A) Very thick lava squeezes out in large mounds. B) Thin lava runs quickly over a large area. C) Lava stops flowing while it is still hot and forms ropes. D) Lava continues flowing after a crust forms.
Environmental & Atmospheric Sciences