Answer:
Legend/Key
Explanation:
The legend or the key of a map tells what the images or the symbols mean on a map. The legend or key often tells the difference between the types of lines on a map, which ones show the boundaries of a country versus a state or province. It can also identify the symbols that are used for capitals versus big cities.
In the Heat of the Night opens on a hot and humid August night in the fictional North Carolina town of Wells.
Because it leaves almost no trace and no symptoms yet can still kill you very quickly and effectively