How Often Do El Niño Events Occur

question 85

Multiple Choice

How often do El Niño events occur?

• A)roughly every 5 years
• B)roughly every 20 years
• C)roughly every 100 years
• D)roughly every 400 years

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Definitions:

Emergency Number

A phone number that is called in a critical situation to get immediate help from emergency services.

Coughing Vigorously

Forceful exhalation through the airways aimed at clearing them of irritants, mucus, or foreign particles.

Abdominal Thrusts

An emergency procedure to expel foreign objects from the airway of a choking victim, also known as the Heimlich maneuver.

Shoulder Blades

The flat, triangular bones located on the back of the shoulders, known anatomically as scapulae.