Which boolean operator decreases the number of references by requiring a search to contain both of the words or phrases desired?

Both AND and NOT are the Boolean operator that decreases the number of references by requiring a search to contain both of the words or phrases desired. The AND operator needs both the items to be on each item reverted. If one item is not included in the data and the other is not, the item will not be added to the list of results. The OR operator is whichever item (or two) will be in the reverted data.

the main reason the us senate rejected the treaty of versailles was because "european nations wanted to punish germany"

d(:

me and mark as brainliest.

the  equal rights amendment  (era) states: "equality  of  rights  under the law shall not be denied or abridged by the united states or by any state on account of sex." congress first introduced the era in 1923, but the campaign for ratification took off in the 1960s during the  civil rightsmovement.