Question

Which wind blows north east in the northern hemisphere?
A. Westerlies
B. Trade winds
C. Polar winds
D. Seasonal winds

Answer 1

Hint: In the Northern Hemisphere, air is blown in an anticlockwise direction around low pressure, and in a clockwise direction around high pressure. Wind blows just above the equator, winds blow from east to west. With them the winds draw surface water, producing currents that drift westwards due to the Coriolis effect.

Complete Answer:
In the northern hemisphere, as the winds blow towards the equator, the rotation of the planet shifts to the west. These winds are called trade winds. Such winds blow at a latitude of 0 degrees to 30 degrees, which is very close to the equator. That's because of the Coriolis effect.
Now lets see all the options :
Westerlies : The western, anti-trade or prevailing western winds prevail from the west to the east in the middle latitudes between 30 and 60 degrees latitude. They emerge from the high-pressure areas in the latitudes of the horse and the inclination towards the poles, and they execute extratropical cyclones in this general manner. Thus this is the wrong option(A).

Trade winds : Trade winds or easterlies are constant east-to-west prevailing winds that flow in the equatorial region of the Earth (between 30°N and S). Trade winds blow primarily from the north-east of the Northern Hemisphere and from the south-east of the Southern Hemisphere, strengthening during the winter and when the Arctic oscillation is in its warm phase. Thus this is the right option(B).

Polar winds : A polar wind or plasma fountain is a permanent plasma outflow from the polar regions of the magnetosphere of the Planet, induced by the interaction between the solar wind and the atmosphere of the Earth. Thus this is the wrong option(C).

Season winds : With the start of various seasons, the winds shift their course. These are called Seasonal Winds. In low-latitude climates, a monsoon is a form of seasonal wind which changes direction between winter and summer seasonally. Thus this is the wrong option(D).

Hence the correct answer is option B.

Note:
- The Northern Hemisphere has more land than the Southern Hemisphere. Believe it or not, the Northern Hemisphere is about 68 percent of all the land on Earth!
- The pressure and temperature variations between the two sides of the Pacific are caused by trade winds.
- The trade winds were named after the crews of sailing ships that relied on the winds during the western ocean crossings.