I’m guessing you mean the sentence passive? but it would be “the water boiled at 100°C” if so.
Answer:
The repeated rhythmic unit from which a poem is constructed is called a Foot. It is a pattern of long & short or accented & unaccented syllables. These correspond to strong & weak beats in a bar of music with one very important difference. ... In music, a measure rather than a bar is the closest equivalent to a foot.
Explanation:
Used for a small pause, lists , letters
Yes they are correct I think.
B. it states the main idea i.e. the topic of the essay
