If you see lightning and then hear the associated thunder 10 seconds later, the lightning flash was about ________ mile(s) away
A) four B) five C) two D) one E) three
C
Environmental & Atmospheric Sciences
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The U.S. Environmental Protection Agency currently recommends that regulators assume children face a risk ____ times that of adults when exposed to carcinogenic chemicals
a. 5 b. 10 c. 25 d. 50 e. 100
Environmental & Atmospheric Sciences
Atoms of which of the following elements are largest?
A) Cl B) P C) S D) None, they are all the same size.
Environmental & Atmospheric Sciences
Which country is contributing the most to climate change and global warming?
a. China b. India c. United States d. Russia e. Brazil
Environmental & Atmospheric Sciences
In the 1950s, Los Angeles became famous for its smog. One part of the problem was ________.
Fill in the blank(s) with the appropriate word(s).
Environmental & Atmospheric Sciences