A jet stream forms high in the upper troposphere between two air masses<span> of very different temperature. The greater the temperature difference between the air masses, the faster the wind blows in the jet stream.
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So "Differences in temperature between two air masses" is the answer
D. an RNA molecule since the RNA molecule contains information for making proteins
Yes. Every chemical reaction obeys the law of conservation of mass.
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Phase 2b.......................................................................................
Abiotic because biotic is living. So abiotic is the opposite.
