Answer:
All organisms evolve over time
Explanation:
The transition from able to support itself on land to living in the ocean is a strong example of evolution.
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
C hope this helps. ............