They are fighting because they are rivals.
A passage exists simply as a part or section of a written work, either fiction or non-fiction.
<h3>What is passage?</h3>
A passage exists simply as a part or section of a written work, either fiction or non-fiction. Some declare that a passage can be as quick as a sentence, but most consist of at least one paragraph and usually several.
Your life depends on heat. In fact, every living thing depends on it. Without heat, every living thing would (1) be frozen to death. All living things get their heat (2) from the sun, which provides the conditions in (3) which life is possible. Since the dawn of history man has been able to make(4 )their own fire. He has been able to release the sun's heat that is trapped in things (5) such as wood, coal, and oil. And he has been able to use this heat. Heat has (6)more civilization possible. With heat, man could (7)melt metals. As man used metals and fuels, industries grew. As a (8)machinery engines were invented. These are machines that convert heat energy (9)into mechanical energy. Engines can do the (10)work of many men. Without heat, industrial civilization would be impossible.
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