When you are done with your research, write a paper describing how methane emitted from cows can be used as an energy source. Your essay must include: the definition of methane;
an explanation of how it is produced;
a description of how methane can be used as an energy source;
an explanation of how farmers are using methane from farm animals as an energy source; and
a specific example of an actual farm where this system is being used
Your essay must be at least at least 300 words and must include at least three references.