The largest single cause of extinctions is toxic substance pollution
Indicate whether the statement is true or false.
Answer: FALSE
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Harry Hess used oceanographic research data to propose the theory of
________________. Fill in the blank(s) with the appropriate word(s).
Advances in agriculture ________
A) do not rely on ecosystem services B) have resulted in a smaller global population C) are always sustainable, since they are based on natural ecosystems D) have often resulted in alteration and destruction of natural systems E) did not increase the amount of food per person from a global perspective
Glaciers are second only to the ocean in the amount of water they contain
a. True b. False Indicate whether the statement is true or false
A volcanic deposit comprised of red to black lapilli-sized pyroclastic material associated with pahoehoe lava flows was probably deposited on ________
A) a large composite volcano B) a cinder cone C) a satellite shield volcano on a rhyolitic caldera D) a shield volcano