The ratio of boys to girls at a school dance is shown in the graph.
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Number of Girls
Number of Boys
x
y
Which equation has a greater rate
of change than the rate shown in
the graph?
a. y 5 __
1
5 x
b. y 5 __
1
7 x
c. y 5 __
2
9 x
d. y 5 __
2
3 x

Long term exposure to waves can cause sunburns and skin cancer. a) visible b) infrared c) gamma rays d) ultraviole

Sandy is building a small toy car. he wants to use a balloon to power the toy car. he fills a balloon with air and then attaches a straw to the balloon. he tapes the balloon-straw combination to the car and then releases the end of the balloon. the toy moves forward as the air from the balloon comes out the back of the straw. what can sandy do to make the toy car move faster? a) use less air in the balloon. b) blow up the balloon more. c) use a longer straw. d) use larger tires.

What are some examples of anthropogenic atmospheric particulates?