An antecedent is a word for which a pronoun stands. The pronoun must agree with its antecedent in number. Rule: A singular pronoun must replace a singular noun; a plural pronoun must replace a plural noun. Here are nine pronoun-antecedent agreement rules.
Best Answer: Wrong answer. Well trough is right. But peak is totally wrong. The crest is the highest point on a wave, while the trough, or valley between two waves ...
1 One of the most important things to remember about waves is that they transport energy, not matter. This makes them different from other phenomenon in physics. 2  Many waves cannot be seen such as microwaves and radio waves.  The tallest ocean wave ever recorded was 1,720 feet tall and occurred in Lituya Bay in Alaska.