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    Answer 6 out of 7 questions correctly.

A natural hazard is an event that occurs naturally and can harm people or the environment. There are many types of natural hazards.
To help people plan for the damage natural hazards can cause, scientists make maps to show where and how often these events happen. For example, the map below shows data about tornadoes in the United States.
Tornadoes are large columns of rotating air that can form during thunderstorms. Strong tornadoes have high wind speeds and can cause severe damage.
A map showing the number of recorded strong tornadoes across the United States from 1950-1998. Some regions had less than 1 tornado, some regions had 1-5 tornadoes, some regions had 6-15 tornadoes, some regions had 16-25 tornadoes, and some regions had more than 25 tornadoes.
Source: Federal Emergency Management Agency
Complete the statement.
a range for the number
the exact number
This map does not show 
 of strong tornadoes in each region of the United States between 1950 and 1998. Instead, it shows 
 of strong tornadoes in each region.
ref_doc_title.

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