El Nino / La Nina

In the Southern Hemisphere, ocean currents flow in a counter-clockwise direction.

• True

• False

The El Nino is caused by

• cold water off the Atlantic coast of South America
• warm water in the Pacific off the coast of South America
• warm water in the Pacific off the coast of Mexico
• cold water in the Pacific off the coast of Mexico

Where does the term El Niño come from and what does it mean?

• “The Child,” due to its appearance around the Christmas season

• "The Chile," due to its appearance around Thanksgiving

• "The Kid", due to its appearance around Easter

• "The Family", due to its appearance around 4th of July

The term El Niño now refers to both a coupled oceanic and atmospheric phenomenon that is characterized by all but 1 of the items below.

• Changes in rainfall distribution around the world.

• Changes in sea level pressure between Darwin and Tahiti

• Abnormally warm sea water near South America

• Atmospheric stagnation

What does the term ENSO refer to?

• El Nine/ Nothern Oscillation

• Enchiladas Not Sweetened Horita

• La Nina/ Southern Oscillation

• El Niño/ Southern Oscillation

How often to El Niño events occur and how long do they generally last?

• Occur every 3-5 weeks/ Usually last for 9-12 days.

• Occur every 3-5 years/ Usually last for 9-12 months.

• Occur every 9-12 years/ Usually last for 3-5 months.

• Occur every hour/ Usually last for 15 min.

What is the warming of Earth's atmosphere by gases like carbon dioxide and water vapor trapping the Sun's energy called?

• the Greenhouse effect
• the Coriolis effect
• prevailing westerlies
• Gulf Stream

What do you call winds that blow in the same direction all over the Earth?

• Trade winds

• Coriolis effect

• Greenhouse effect

• Sea breezes

What causes warm air to rise?

• the fact that it's less dense than cold air 
• The fact that it weighs more than cold air 
• The fact that it has higher pressure than cold
• the fact that its more dense than cold air 

The El Nino is caused by

• cold water off the Atlantic coast of South America
• warm water in the Pacific off the coast of South America
• warm water in the Pacific off the coast of Mexico
• cold water in the Pacific off the coast of Mexico