Anyone can improve an answer. However, it is against the rules to erase a good answer, but you can add to an existing answer.
Then improve them. That is the whole point of a "wiki", that you can improve the answers by editing them yourself.
When taking tests or submitting answers for class assignments students will not be able to improve their answers because the answers will only be able to be submitted once. After the answers are submitted they are not allowed to be changed.
Yes, some are. You can Register and improve the answers.
To correct answers on Wiki Answers you need to lick on the improve this answer or edit this page button.
To make answers on WikiAnswers right, you click on 'improve answer' when you see an incorrect answer, and then you can change it. The 'improve answer button is located just beneath the answer to a question.
no if u scroll down people are aloud to improve or type their own answers
you need to register
Answers wanted to redesign the website. Websites do this to improve the functionality for visitors.
Because people have to improve it
you have to become a member then press improve answer.
You can edit answers by clicking the orange button that says "improve answer." Keep in mind that Answers.com is based on a wiki and edits should improve upon previous content and not delete it.
Nearly every answer on WikiAnswers can be improved by anyone. There are only a few answers that have been protected for editing by Supervisors only because they have been especially prone to vandalism. Actually, you have to have a Wiki Answers account if you want to improve an answer that has already been answered.