Airdrop is a very simple way to earn free cryptocurrency. All you need to do is to hold a crypto wallet. Airdrop is a blockchain marketing scheme where you are requested to link into emails and social media aspects of that network platform. This is actually a means to gain attention and getting linked to millions of users through their crypto wallets.
Read more https://coinfunda.com/earn-free-cryptocurrency/
Speaking of earning cryptocurrency via Airdrop, energi [NRG] airdrop called as Earndrop is currently on its third phase distribution accomodating citizens of the following countries giving away around 100 NRG each ($269) at the time of this writing.