I think all of these fit well, but to best describe would be A.
Answer:
the first one is all the above
1.- Sales of used goods are not counted. It has sense because if they were counted we would have double the counting.
2.- Goods and services that are sold in the black market or illegal goods and services because they are extremely difficult to count.
3. Intermediate goods that are used to produce other final goods because the counting of intermediate goods counting will lead to double counting .
The placebo effect is when somebody's physical or mental health appears to improve after accepting a placebo or 'dummy' treatment.
<h3>How does the placebo effect result in the brain?</h3>
The placebo effect increases activity in an area called the rostral ventromedial medulla, which transfers pain information, and reduces activity in the periaqueductal gray, which helps the body suppress pain. The nocebo effect generated the opposite change.
In anticipation of benefit when a placebo is administered, dopamine receptors are started in regions of the brain associated with prize. As further evidence that the placebo effect is a authentic biological phenomenon, genetics can influence the strength of the effect.
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The westerly wave pattern that is likely to persist for a longer time is <u>meridional.</u>
<u></u>
The fact is that there isn't an ordinary pattern in relation to witnessing the advent of waves produced by way of wind, hours ago and loads or lots of miles far from the shore. The beginning and the behavior of a swell or institution of waves are not geometrical, mathematical, and completely predictable.
A standing wave sample is a vibrational sample created inside a medium whilst the vibrational frequency of the supply causes meditated waves from one end of the medium to intrude with incident waves from the supply.
Whether longwave or shortwave, by means of far the most commonplace pattern seen in higher air charts are simply plain troughs and ridges. those waves and troughs are considered 'open' as, for the maximum element, there's no closed stream associated with the waves. They may be modern meaning they pass from west to east.
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