Perhaps the most difficult oceanic habitat is/are ____.?
A) ?the abyssal zone
B) ?intertidal coarse sand and cobble beaches
C) ?intertidal rocky shores
D) ?the epipelagic zone
B
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How long does marine life usually tend to recover from a crude oil spill?
A) 2 years B) 5 years C) 7 years D) 10 years
Extensive _____ were deposited as the Tippecanoe Sea gradually regressed from the North American craton during the late Silurian
A)sandstones B)shales C)volcanic rocks D)evaporites E)limestones
What economic advantages would break-of-bulk points offer to local populations?
What will be an ideal response?
In alkenes there are four groups bonded to the carbons which constitute the carbon-carbon double bond. Which of the following situations produces cis-trans isomerism?
A) when all four groups are the same B) when the two groups on one atom are the same, but the two groups on the other atom are different from each other and also different from the groups on the first atom C) when three of the four groups are the same, but the fourth group is different D) none of these results in the existence of cis-trans isomerism