Final answer:
The EF-scale is a system used to classify tornadoes based on wind speed and damage caused. Meteorologists survey the damage and assign a rating based on the extent and intensity of the damage.
Step-by-step explanation:
EF-Scale
The EF-scale, or Enhanced Fujita scale, is a system used to classify tornadoes based on their wind speed and the damage caused. It was developed by meteorologist Ted Fujita in collaboration with engineer Allen Pearson.
Assigning an EF-Scale Rating
To assign an EF-scale rating to a tornado, meteorologists survey the damage caused by the tornado and assess the intensity of the wind. The damage is categorized into 28 indicators, such as damage to buildings, trees, and the overall landscape. Each indicator is assigned a rating based on the extent and intensity of the damage.
For example, if a tornado causes minor damage to trees and buildings, it may be classified as an EF0 tornado. On the other hand, if a tornado causes devastating damage and completely destroys buildings, it may be classified as an EF5 tornado.