Reefs grow as far north and south as 35° latitude on the ________ margins of ocean basins
A) central
B) eastern
C) northern
D) southern
E) western
E
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Coasts refer to an entire area that is affected by biological processes in addition to tectonic activity
Indicate whether the statement is true or false
What proportion of urban Americans lives in the suburbs?
A. one-tenth B. one-quarter C. one-third D. one-half E. two-thirds
Nutrient cycles include carbon and nitrogen
Indicate whether the statement is true or false
Which of the following is NOT a way to reduce our need for newly mined phosphate? Group of answer choices
a. flush used phosphorous fertilizer into waterways so that it does not inhibit the effectiveness of newly applied phosphorous b. encourage organic farming methods c. reduce soil erosion from agricultural lands so that more phosphorous is retained in the fields for crops d. use phosphorous to grow food crops rather than biofuels crops e. recycle phosphorous-rich animal waste and bones for use in fertilizer