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Which class of molecules contains the amino group, nh2 (a) sugars (b) water (c) proteins (d) hydrocarbons
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What are the two causes of density in deep current waters? a. salinity (how much salt) of the water and high temperaturesb. salinity (how much salt) of the water and low temperatures c. oxygen content of the water and high temperatures. d. oxygen content of the water and low temperatures
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The picture shows a location in india that is very dry and arid. notice the tall mountains in the background; you can find high amounts of vegetation on the other side of the mountains. which statement is most likely true for this area?
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Which of the following is an eon in the time scale? phanerozoic proterozoic archean all of the above
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