I’m studying for my Writing class and need an explanation.

Fake news:During the 2016 election, Fake News had propagated via Social Media. Have you ever fallen victim to Fake News? When did you realize it was Fake News?

Leveraging social media :According to the article people used SM to help out others who were impacted by the recent hurricane.

How can HR use SM as an effective communication tool?
This is general question but if you have experience in HR you might have a little more insight.