What is a Crypto Airdrop and how does it work?
The crypto airdrop is a practice whereby existing holders of a certain cryptocurrency, such as Bitcoin, receive free tokens as a reward. In layman terms, it is a giveaway that aims to promote a particular blockchain.
Whereas Bounty means..
A sum paid to you for doing some simple tasks such as: writing comments, sharing links on social media, watching Youtube videos or referring friends. Simply means you need to do something before getting a reward.