Deep-vent communities, near black smokers and atop cold seeps depend on ________ for energy
a. sunlight
b. chemosynthesis
c. human pollution
d. photosynthesis
b
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How does connecting a metal like iron with a wire to a metal that is easier to oxidize like zinc help prevent corrosion of the iron?
A. There is no salt-bridge, so there is no reaction between the two metals. B. The wire is acting as an oxidant and keeps the two metals from undergoing other chemical reactions. C. The other metal absorbs the electrons from the iron, which keeps the iron from undergoing oxidation. D. The other metal is oxidized and adsorbs all the oxidant, keeping it away from the iron. E. The other metal is oxidized instead and the electrons travel to the iron, keeping it from oxidizing.
Which of the following processes occurs when fog "burns off"?
A. It evaporates. B. It thickens from the ground up. C. It absorbs sunlight and warms up. D. It settles to the ground in the form of rain.
The one place on Earth where mid-ocean ridge volcanism occurs above sea level is ____________________
Fill in the blank(s) with correct word
Europe's mild climate despite its high latitude is mainly due to the warm ocean currents of the Gulf Stream and the North Atlantic Drift
Indicate whether the statement is true or false