The earth is estimated to be approximately 4.6 billion years old. Life appeared early in the history of Earth, but metazoans (multicelled organisms) did not appear until about 600 million years ago
If the history of Earth were compressed into a single year, when would metazoans appear?
A) late November B) late January C) mid-December D) late September
A
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Which animal below is a mammal?
a. dinosaur b. bird c. frog d. turtle e. horse
The Seattle, Washington area ____
A)is very likely to have a large earthquake in the foreseeable future B)is very unlikely to ever have a large earthquake C)has frequent small earthquakes and so is very unlikely to have a large earthquake D)has large earthquakes about once every century E)has never had a large earthquake
How much do mountains rise with each addition of 1000 meters of crustal material?
A. 2 meters B. 200 meters C. 20 meters
In cities, where less vegetation and exposed soil exists, the majority of the Sun’s energy is absorbed by ____
a. cloud cover b. city parks c. the greater number of people d. buildings e. urban structures and asphalt