Jet Streams and El Nino

Q. How does the jet stream impact Indian monsoon?

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

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. Which of the following are true with reference to jet streams?

1. High-velocity winds
2. Blows in the troposphere
3. Causes weaker monsoon
4. Affects the onset of monsoon

Q. are high-velocity winds that blow in the troposphere at an altitude of around 12, 000 metres.

1. Monsoon winds
2. Northeast trade winds
3. Jet Streams
4. Southwest trade winds

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. A:) El Nino is characterised by warm ocean surface waters near the coast of Peru.

B:) El Nino causes lower than normal monsoon in India.
Read the above given statements carefully and select the option that is true.

1. Statement A is correct.
2. Statement B is correct.
3. Both Statement A and B are correct.
4. Both Statement A and B are false.

Q. How hot air goes up from Equatorial Low then comes down from Subtropical High[ in both 30* North &30* South]then againgoes up in Subpolar low( in both 60 * North & South )& again comes down ?

Q. When do southwest monsoon winds reach India? Explain the journey of southwest monsoon winds.​

Q. 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. What are jet streams?

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