There are 2 reasons that come to mind
1-To get a refund of any withheld taxes
2-You may need to show filed tax returns to qualify for a mortgage or other type of loan
Yes. Being claimed as a dependent doesn't prevent the dependent from filing a return. That also doesn't prevent you from still claiming them on your own return. The IRS gives guidelines for determining whether dependents are required to file tax returns. Also, even though dependents might not be required to file, they should file if tax was withheld in order to receive a refund of that tax.
No you are not required to. You should if there is no one else to help though because you are certified.
The group of individuals used to represent a population is called the sample. It should have the same statistics as the population, though be of a smaller size.
About 75% of the freshman class had a GPA of 3.75 or higher, though there is no required GPA.
No it isn't usually. You should check for your particular state and town, though.
not that i know of. i don't think so though
You should be able to do that. Some tuning of office security settings might be required though.
They are antonyms. Authoritarianism is the belief that the government should have almost all power, and the individuals very little. Libertarianism is the belief that the government should have almost no power, and the individuals very much (though this power is diluted through a large population).
Clouds should form though convection of air and condensation of water vapor in the air.
Sure. There probably isn't a lot of income to report though.
As of now, unfortunately not. Never fear, though, for it returns in 2014!
It is conventional - though not strictly required - to return 0 to signify a successful, normal termination. (Note: different errors can be reported with different non-zero values. It's a bit confusing that utility program "true" returns 0, and "false" returns 1; perhaps it would be better, if their names were "success" and "fail".)