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01.1  An El Nino event occurs usually...

twice every century
every ten years
every three-to-five years
every six weeks
every leap year
I don't know

01.2   The random failure of the India monsoons usually occurs with

low pressure over Darwin, Australia
strong trade winds over the Pacific Ocean
strong trade winds over the Atlantic Ocean
low pressure over Tahiti
I don't know

01.3  The difference between the pressure at Tahiti and Darwin is known as

Upwelling
Teleconnections
Southern Oscillation
Southern Oscillation Index
I don't know

01.4  The Trade Winds

blow from west to east, create a 20 inch difference in sea level, and make the western Pacifc a little warmer
blow from east to west, create a 20 inch difference in sea level, and make the western Pacific a little colder
blow from east to west, create a 10 inch difference in sea level, and make the western Pacific a little warmer
blow from east to west, create a 20 inch difference in sea level, and make the western Pacific a little warmer
blow from west to east, create a 10 inch difference in sea level, and make the western Pacific a little colder
I don't know

01.5  The thermocline is a layer that separates

warm water above it from cold water underneath and where temperatures changes occur slowly
warm water above it from cold water underneath and where temperatures changes occur rapidly
cold water above it from warm water underneath and where temperatures changes occur slowly
cold water above it from warm water underneath and where temperatures changes occur rapidly
I don't know

01.6  Upwelling is a natural force

where weak trade winds push the water towards eastern Pacific making cold water replace the warm water layer
where strong trade winds push the water towards western Pacific making cold water replace the warm water layer
where weak trade winds push the water towards eastern Pacific making warm water replace the cold water layer
where strong trade winds push the water towards western Pacific making warm water replace the cold water layer
I don't know precursor

01.7  The name "El Nino" refers to

a boy child
the number nine
the Christ Child
a girl child
I don't know

01.8  As characterized by Neville Nicholls, all of the following are phases of El Nino except for:

decay
onset
antecedent
growth and maturity
I don't know

01.9  The Southern Oscilation, or the see-saw effect of the Pacifc Ocean, is

whenever pressure is low in the east, it is high in the west
whenever pressure is high in the east, it is also high in the west
whenever pressure is low in the east, it is also low in the west
I don't know

01.10  Weather changes at one location might be realted to changes at another location is referred to as

upwelling
oscillation
Rossby waves
thermocline
Teleconnections
I don't know