Jet Streams and El Nino

Q.

In winter from which sea do the western cyclonic disturbances originate?

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. <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> __________ is a jet stream located approximately over 27° to 30° north latitude.

1. Subtropical easterly jet stream
2. Westerly jet stream
3. Tropical westerly jet stream
4. Subtropical westerly jet stream

Q. <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Multiple periodic changes in the pressure conditions of the Southern Pacific Ocean is called __________.

1. Southern Oscillation
2. El Nino
3. Northern Oscillation
4. Eastern Oscillation

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;}--> ____________ is the first indication of the onset of the monsoon over the Indian subcontinent.

1. Westward shift of the subtropical westerly jet stream
2. Eastward shift of the subtropical westerly jet stream
3. Southward shift of the subtropical westerly jet stream
4. Northward shift of the subtropical westerly jet stream