Read the passage and then write the antonym or synonym of the words as directed:

Facebook is a very popular social networking site with over eight hundred million users But it has both positive and negative effects on its users. We can keep touch with our friends and relatives. It is the best means to stay connected with people. Facebook helps us make friendship even with unknown people. On the otherhand, it is very easy for cyber bullies to thrive. They can harass any one. Besides, teenagers are spending too much time on it.