These peer-to-peer contracts act as a means of collateral. The main goal of Ethereum services was to support smart contract deals. The smart contract eliminates the need for intermediaries, thus optimizing the system. Smart contracts have enabled the renewal and closure of incapacity to work certificates in the healthcare system and prescription of drugs.
ERC-20 is the first crypto to offer even price correlation without third parties. Following the principles behind the ERC contract makes ETH one of the two cryptocurrencies that shape the market. Bitcoin is the other coin.
Staking is another great way of earning passive income. You can stake your ETH and earn passive income through the year. The best is that you can withdraw your coins ( ETH ) anytime.