Filter out iron and reduce rotten egg odor without the use of chemicals. 1  Rated for continuous flow rates from 2.7 gpm to 476 gpm at 5 gpm/square foot.  Chemical free: no potassium permanganate, salt or chlorine.
Topic Sentences and Examples The main thing you need to know for writing paragraphs. Topic Sentences and Examples All body paragraphs of an essay need to start with a topic sentence and include an example. A topic sentence is a general statement about the topic that you are writing about. It answers the question in a broad way.
Introductory Sentences Versus Topic Sentences. Because textbook authors often make the first sentence of a paragraph the topic sentence, readers sometimes confuse introductory sentences with topic sentences.