What does the evidence that the Antarctic ozone hole has expanded over the past twenty years mean? Explain
What will be an ideal response?
There are various ways to answer this question. We could examine the changing
composition of the stratosphere over this interval, and see what things might have changed.
That meaning could give clues as to the source of the decrease in ozone. We could conclude
that whatever causes the ozone hole must be increasing in strength. At the very least, we can
conclude that something is changing because the hole area is changing.
You might also like to view...
A lens that is thicker at the edge than at the center is
a. a diverging lens only. b. a convex lens only. c. a converging lens only. d. both a convex lens and a converging lens.
Massive planets create ____________ Doppler shifts of their stars than lower-mass planets
Fill in the blank(s) with correct word
What happens when two forces act in the same direction?
A. They cancel each other out. B. They are added together. C. They are subtracted. D. Their sum divided by two is the total force.
A transiting extrasolar planet is observed to block 1% of its host star's light. How does the size of this planet compare to the host star?
A) The planet's radius is 10% of the host star's radius. B) The planet is the same size as the host star. C) The planet's radius is 0.1% of the host star's radius. D) The planet's radius is 1% of the host star's radius.