Internet? length, accuracy, and graphics
interactivity, objectivity, and authorship
graphics, sponsorship, and accuracy
creativity, reliability, and length
authorship, sponsorship, and recency
Erin/ Alfred/ Krista:
You need to do your homework yourself and not rely on Y!A to do it for you. Getting every question on your test or homework answered by someone else is considered cheating and probably against your school's academic integrity policies.
I would suggest approaching your professor or going to an on-campus tutoring center if you need extra help.