Why are organisms in rocky intertidal zones sorted into horizontal bands??
A) ?Crashing waves remove weaker ones close to the water line.
B) ?Some float and are carried upward at high tide.
C) ?Some can better tolerate drying out between high tides.
D) ?Some need to stay out of the water to breathe.
C
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Folds are most often created through what type of stress?
A) Compression B) Tension C) Shear D) Confining
A circle marks the location of an observing station on a surface weather map. This means
A) there is a 50% chance of rain. B) the sky is 50% covered with clouds. C) the wind speed is 50 miles per hour. D) the relative humidity is 50%. E) the wind speed is 5 miles per hour.
Colony collapse disorder is ____.
A. limited to Europe B. limited to the United States C. when honey bees leave in winter and don't return to their hives in spring D. the disintegration of bee hives E. experienced by members of the bee colony after the queen's death
Which technology provides the cheapest source of electricity generation?
A) biomass B) geothermal power C) solar energy D) wind power E) all of the above are incredibly expensive, and not valid alternatives to fossil fuels