We can slow the rate of ozone hole-creation by
a. stopping production of ozone-depleting chemicals
b. recovering and reusing ozone-depleting chemicals
c. finding substitutes for CFCs
d. all of these answers
e. none of these answers
D
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The Law of the Sea treaty allows coastal countries to claim an EEZ extending up to 20 miles offshore
Indicate whether the statement is true or false.
The three factors that affect the growth of wind waves are ____________ ____________, ____________
____________, and _____________. Fill in the blank(s) with the appropriate word(s).
Which of the following is an example of numerical time?
A. The Silurian period occurred before the Devonian Period. B. The Silurian period began approximately 438 million years ago.
Aphanitic texture is characteristic of:
a. intrusive rocks b. extrusive rocks c. porphyritic rocks d. pyroclastic rocks