Your best friend just won the lottery. even though you may experience envy, you also cannot feeling excited along with him because you are both grinning from ear to ear. this reaction supports the regarding the origin and intensification of emotion.

Facial Feedback hypothesis

Explanation:

The facial feedback hypothesis states that facial movement can actually affects emotional experience. For example, one person who's not feeling happy but puts a big smile on his/her face will start feeling happy and experiencing feelings of joy.

In this example, you are experiencing envy, but you are both grinning from ear to ear so you start feeling excited along with him. According to this theory, that happened because your facial muscles movement actually had an influence on your emotional experience.

Thus, this reaction supports the Facial Feedback hypothesis regarding the origin and intensification of emotion.

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.