Jet Streams and El Nino

Q. Jet streams are a narrow belt of high-velocity winds that occur in which of the following layers of atmosphere?

1. Thermosphere
2. Mesosphere
3. Troposphere
4. Exosphere

Q. <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> How does the jet stream impact Indian monsoon?

1. They strengthen the Indian monsoon.
2. They weaken the Indian monsoon.
3. They affect the onset of the Indian monsoon.
4. They do not affect the Indian monsoon at all.

Q. The Indian subcontinent receives the highest rainfall in an El Nino year compared to a normal year.

1. False
2. True

Q. <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> What are jet streams?

1. High velocity winds that blow in the upper troposphere at an altitude of around 12, 000 metres.
2. High velocity winds that blow in the stratosphere at an altitude of around 12, 000 metres.
3. Low velocity winds that blow in the upper troposphere at an altitude of around 12, 000 metres.
4. Low velocity winds that blow in the stratosphere at an altitude of around 12, 000 metres.

Q. how does presence of el nino lead to an increase in sea surface temperatures and weakening of the trade winds in the region?​

Q. Why does India receive lower rainfall in an El Nino year compared to a normal year?

1. The high pressure area near Madagascar does not fully develop.
2. Weakened pressure differences that push the winds to low pressure areas.
3. Heightened pressure differences that push the winds to high pressure areas.
4. Lower pressure differences weakens monsoon winds.

Q.

when did cyclonic rainfall take place& where

Q. What are jet streams?

1. High velocity winds that blow in the upper troposphere at an altitude of around 12, 000 metres.
2. High velocity winds that blow in the stratosphere at an altitude of around 12, 000 metres.
3. Low velocity winds that blow in the upper troposphere at an altitude of around 12, 000 metres.
4. Low velocity winds that blow in the stratosphere at an altitude of around 12, 000 metres.

Q. Jet streams are also called subtropical westerly winds.
What is the altitude at which Jet streams blow ?
A) 6000 m
B) 12000 m
C) 8000 m
D) 16000 m

Q. <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Which of the following process is referred as 'the southern oscillation'?

1. Multiple periodic changes in the pressure conditions of the Southern Pacific Ocean.
2. Multiple periodic changes in the pressure conditions of the Northern Pacific Ocean.
3. Multiple periodic changes in the pressure conditions of the Southern Bay of Bengal.
4. Multiple periodic changes in the pressure conditions of the Southern Arabian Ocean.

Q. why does sometimes a warm ocean current flows past the peruvian coast in place of a cold peruvian current?

Q. how does ENSO affect Indian monsoon?

Q. How does the movement of the westerly jet stream to the north of thehimalayas& presence of the tropical easterly jet stream over the Indian peninsula affect monsoon of INDIA?