Answer:
Boolean Operators
Explanation:
When performing a boolean search, boolean operators allow users to combine keywords with operators (or modifiers) such as AND, NOT and OR to further produce more relevant results.
The boolean operators AND and OR are used to include certain words and phrases during the search while the boolean operator NOT is used to exclude certain words and phrases.
Android<span>, </span>iOS<span>, Windows and </span>Blackberry<span> devices.</span>
The farming of maize began in Mesoamerica in 6000 B.C.
The domestication of maize made the city of Tenochtitlan possible by providing the Aztecs the ability to feed millions. Unlike the corn that is known today, the early maize had tiny cobs but dramatically became bigger and more nutritious as time passed.