The major reason why large-scale areas of broadleaf evergreen trees occur only in the southern hemisphere is that ____
a. only ocean areas are found in the northern hemisphere at the latitude necessary for sustaining these forests
b. broadleaf evergreen species are continentally isolated from the northern hemisphere
c. ocean influence maintains the moderate temperatures needed by this type of tree
d. large areas of these trees in North America were cleared for cultivation
e. they prefer the higher elevations found in the Southern Hemisphere
c
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Which of the following is a correct statement about ocean currents?
A. They are warmest in the mid-latitudes. B. They are typically colder than the water 1 km below. C. They are not involved in La Niña events. D. They initiate Ekman spirals.
During the last 750,000 years
A) Earth has had at least two ice ages. B) ice volume changes have been highest in the Southern Hemisphere. C) there has been a pattern of roughly 100,000-year cycles in climate change. D) there has been little change in climate.
During periods when oil prices are high when gasoline prices skyrocket, hybrid vehicle sales will be expected to
A) decrease, while more people use public transportation. B) increase, while fewer people use public transportation. C) decrease, while fewer people use public transportation. D) increase, while more people use public transportation.
A ________ encompasses all land near the sea, including the beach and a strip of land inland from it.
A. tidal range B. coast C. high tide D. shoreline E. shore