English

Joyce Saunders

5 August, 20:57

An increase in automobile use has led to increased

demand for fuel. The extraction, processing, and delivery

of fuel put harmful pollutants into the atmosphere. The

fuel that is then consumed by engines creates carbon

dioxide emissions. The carbon dioxide creates a

greenhouse effect in the atmosphere. The gasses trap

heat in Earth's atmosphere, leading to global warming.

What is one way the author uses a cause-and-effect structure to support his

purpose?

O

A. By explaining how gases trap heat in the Earth's atmosphere.

O

B. By explaining the relationship between automobile emissions and

global warming

O

C. By listing several examples of how people can get around without

automobiles

O

D. By exploring the dangerous effectasof air pollution on living things