Facebook has a huge reach due to its high popularity

[Jahangir712]

Facebook has a huge reach due to its high popularity. On average, more than 1.47 billion people log in to Facebook every day.
As more and more people access Facebook, you get a larger and larger audience to advertise to in order to attract customers to your site. There are different types of Facebook ads like Domain Ads , Multi-Product Ads , Offer Ads , Video Ads , Dynamic Ads , and so on that you can choose from.

Sharing personal stories and detailed information is Facebook's inherent amazon database strength. Many people log in to share anecdotes from their own lives with their community, which means it's a great place to spread the word when they have a positive experience with your business.
Facebook is a highly interactive social network where you get quick feedback on the quality of your products or services, thanks to its reviews and messaging features.
Target Audience: Generally, the 24-45 age group is the most active group on Facebook.

Facebook use by key demographic groups

Twitter
Purpose: Twitter is a very popular channel for sharing news and updates. Because you have a 280-character limit on your tweets, Twitter is the perfect medium for making short announcements.

Unique attributes:

Twitter is the best channel for people looking for quick and reliable information on any product/news, due to its short articles and its Trending section, which allows users to see popular news articles.
It is possible to get immediate responses on Twitter because of its highly interactive follower base.
Companies can use Twitter for their public relations activities, as they can make brief announcements about the release of new products or services.
Hashtag communication makes Twitter one of the easiest ways to share news and information with your customers.