As you present your speech, you notice that many of your listeners have interested looks on their faces and are nodding their heads in agreement with your ideas. according to your textbook, these reactions by your listeners are called:

"Positive Feedback"

Explanation:

When you are giving a speech and see that the crown is excited or interest and they are nodding their heads in agreement this is usually called "Positive Feedback". This let's the person giving the speech know that people are reacting positively to what he is saying and that he can continue in the same route that he is taking without having to change the game plan of his speech in order to get people's attention.

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it apply by theyre artifacts

two jet streams that directly affect the formation of weather in the continental part are a polar jet and a subtropical jet. they are responsible for the transportation of weather systems, which directly affect people. the polar front is the boundary between cold air from the north pole and warmer equatorial air. both the polar jet and the subtropical jet blow from the west to the east, and follow the boundary between cold and warm air.

the strongest jet streams are polar jets, while subtropical jets are somewhat weaker.

the right answer is c. the polar jet stream is generaly stronger than the subtropical jet stream.