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

By explaining the relationship between automobile emissions and global warming

author – information on the internet with a listed author is one indication of a credible site. the fact that the author is willing to stand behind the information presented (and in some cases, include his or her contact information) is a good indication that the information is reliable.

date – the date of any research information is important, including information found on the internet. by including a date, the website allows readers to make decisions about whether that information is recent enough for their purposes.

sources – credible websites, like books and scholarly articles, should cite the source of the information presented.

domain – some domains such as .com, .org, and .net can be purchased and used by any individual. however, the domain .edu is reserved for colleges and universities, while .gov denotes a government website. these two are usually credible sources for information (though occasionally a university will assign a .edu address to each of its students for personal use, in which case use caution when citing). be careful with the domain .org, because .org is usually used by non-profit organizations which may have an agenda of persuasion rather than education.

site design – this can be very subjective, but a well-designed site can be an indication of more reliable information. good design make information more easily accessible.

writing style – poor spelling and grammar are an indication that the site may not be credible. in an effort to make the information presented easy to understand, credible sites watch writing style closely.

what are the following?