The answer I believe is a meteorologist. :)
Answer:
Inertia
Explanation:
Inertia is the resistance of any physical object to any change in its velocity. This includes changes to the object's speed, or direction of motion.
Answer:
2 - 7 years.
Explanation:
El Nino events occur on average about every 3 to 5 years but historically have occurred at wider intervals from 2-7 years.