Answer: Age
Explanation: Age always goes up, but doesn't go down.
<span>In front of the chancellor’s office there are dozens of students protesting the university’s new policies
But it can also be past tense
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Oblique butterflyfish - Prognathodes obliquus
Montag gets on the subway and starts reading the Bible, because he wants to memorize some lines from it. However, he is being constantly distracted and interrupted by an advertisement for Denham's Dentrifice toothpaste, as its jingle is played over and over again on the subway. He gets really mad because of it and starts screaming and yelling, before he leaves at the next stop.