[Mission 2022] QUIZ – 2020: INSIGHTS STATIC QUIZ , 28 October 2021 – Geography

Solution: a)

A cyclone, commonly known as a low, is an area of low pressure where air masses meet and rise. An anticyclone, commonly known as a high, is an area of high pressure where air moves apart and sinks.

Cyclone typically indicates bad weather, like rain and clouds whereas anticyclone indicates fair weather.

Solution: d)

Mid-latitude or frontal cyclones are large traveling atmospheric cyclonic storms up to 2000 kilometers in diameter with centers of low atmospheric pressure.

Mid-latitude cyclones are the result of the dynamic interaction of warm tropical and cold polar air masses at the polar front.

This interaction causes the warm air to be cyclonically lifted vertically into the atmosphere where it combines with colder upper atmosphere air. This process also helps to transport excess energy from the lower latitudes to the higher latitudes.

Solution: d)

Due to its high altitude, the climate is extremely cold and dry. The air at this altitude is so thin that the heat of the sun can be felt intensely. The area experiences freezing winds and burning hot sunlight.

The day temperatures in summer are just above zero degree and the night temperatures well below 30°C.

It is freezing cold in the winters when the temperatures may remain below 40°C for most of the time.

You will be surprised to know that if you sit in the sun will your feet in the shade, you may suffer from both sunstroke and frost bite at the same time.

Solution: b)

Thunderstorms are caused by intense convection on moist hot days. A thunderstorm is a well-grown cumulonimbus cloud producing thunder and lightning. When the clouds extend to heights where sub-zero temperature prevails, hails are formed and they come down as hailstorm. If there is insufficient moisture, a thunderstorm can generate dust storms.

A thunderstorm is characterised by intense updraft of rising warm air, which causes the clouds to grow bigger and rise to greater height. This causes precipitation.

Solution: c)

Polar front jet stream, also called polar front jet or midlatitude jet stream, a belt of powerful upper-level winds that sits atop the polar front. The winds are strongest in the tropopause, which is the upper boundary of the troposphere, and move in a generally westerly direction in midlatitudes.