Who is best known as the founder of the Sierra Club?
A) Aldo Leopold
B) Ralph Waldo Emerson
C) John Ruskin
D) John Muir
E) Walter Sierra
D
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Why are plutonic rocks often called massive?
A) They often accumulate as successive layers, appearing banded. B) They are covered by the ocean. C) They are very large. D) They rarely accumulate as successive layers and as result look very different from sedimentary rocks.
The unit of pressure designated by the International System (SI) of measurement is the ____.?
a. ?atmospheric pressure b. ?millibar c. ?bar d. ?torr e. ?pascal
Photosynthesis
A. converts glucose into energy and water. B. requires the combustion of carbon. C. produces carbon dioxide and oxygen gas. D. produces glucose and oxygen gas. E. produces glucose and carbon dioxide gas.
Wetlands, estuaries, mangrove swamps, and coral reefs are examples of ____.
A. coastal areas B. ocean habitats C. groundwater reservoirs D. deltaic deposits. E. pelagic zones