This would be the legend!
The legend of a map tells you for example that a square means a capital city.
A scale shows you how big things presented on the map are in real life and the compass helps you orient the map with respect to the North.
A title helps you understand what the map focuses on (for example: " A Political map of Italy").
Air Pollution, Land Pollution, Light Pollution, Noise Pollution, Thermal Pollution, Visual Pollution, & Water Pollution.
Hope this helps ! (:
Answer:
Its B took the test twice
Explanation: