If the atmosphere did not contain an ozone layer, which of the following could happen?

the earth would become very cold.
the earth would not have weather.
the earth would not be protected from the sun's harmful rays.
the earth would not be protected from meteorites.

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There are two routes similar in terrain; however, one route has an incline of approximately 28 degrees, and you must decide on which route to take. what is the maximum road grade that your fully loaded ecv can climb?

What would be the result of an alpha particle coming into a magnetic field? a) the alpha particle will stop moving. b) the alpha particle will reverse its direction. c) the alpha particle will be deflected in a curve path. d) the alpha particle will continue to travel in a straight line.