Which mobile belts were involved in the collision between Gondwana and Laurasia during the Carboniferous period?
a. Taconic, Appalachian, Hercynian
b. Taconic, Hercynian, Ouachita
c. Hercynian, Appalachian, Ouachita
d. Ouachita, Laramide, Sonoma
e. Sonoma, Acadian, Taconic
c
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When a liter of helium gas becomes twice as hot it has
A. twice the absolute temperature. B. twice the thermal energy. C. both of these D. none of the above
Ultimately, all biofuels are ________, because they are the result of ________
A) synthetic; chemical manipulation of hydrocarbons B) solar; photosynthesis C) polymers; biological metabolic processes D) geological; sedimentation E) inefficient; decomposition by microorganisms
The important general conclusion that can be made from this data on herbivory is that ________
A) herbivory is in equilibrium at distance represented by dotted line B) herbivory increases tropical tree diversity C) herbivory decreases tropical tree diversity D) more field studies are needed before any conclusion can be made E) controlled herbivory can be beneficial during field studies
Photosynthesis converts
A) light energy, carbon dioxide, and water into carbohydrates and oxygen. B) light energy, oxygen, and carbohydrates into carbon dioxide and water. C) heat energy, carbon dioxide, and water into carbohydrates and oxygen. D) heat energy, oxygen, and carbohydrates into carbon dioxide and water.