GK
WORLD GEOGRAPHY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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From west to east
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From east to west
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From north to south
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None of the above
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Detailed explanation-1: -The winds blow from west to east in jet streams but the flow often shifts to the north and south. Jet streams follow the boundaries between hot and cold air. Since these hot and cold air boundaries are most pronounced in winter, jet streams are the strongest for both the northern and southern hemisphere winters.
Detailed explanation-2: -Jetstreams are a narrow belt of high altitude (above 12, 000 m) westerly winds in the troposphere.
Detailed explanation-3: -Anything moving from tropics towards poles deflects towards their right in the northern hemisphere and towards their left in the southern hemisphere due to Coriolis effect. So jet streams flow from west to east in both the hemispheres and hence they are called westerlies or upper level westerlies.
Detailed explanation-4: -Jet streams are fast flowing, narrow meandering air currents in the atmosphere of the Earth. Jet streams on earth are westerly winds as in flowing west to east and may start, stop and split into two or more streams.