A shield volcano has a great ________.
A. width compared to its height
B. amount of pumice
C. proportion of pyroclastic material, compared with lava flows
D. height compared to its width
Answer: A
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Ammonium ions are converted to nitrite ions and nitrate ions through the process of
a. Nitrification b. nitrogen fixation c. Denitrification d. Assimilation e. Leaching
When the total fertility rate (TFR) is ______, a population is said to be at the replacement level.
Fill in the blank(s) with the appropriate word(s).
Discuss the changes that distinguished the development of the modern humans from the earlier
primates. What will be an ideal response?
According to the International Whaling Commision (IWC), which is NOT a way to legally hunt whales?
a) aboriginal subsistence whaling b) scientific whaling c) whaling by objection d) whaling to thin out the various whale species e) all of the above