Ethereum is a decentralized open source blockchain featuring smart contract functionality. Ether is the native cryptocurrency token of the Ethereum platform. It is the second-largest cryptocurrency by market capitalization, behind Bitcoin
Currently Ethereum (ETH) uses a Proof of Work consensus mechanism. However, Ethereum plans to transition to Proof of Stake. When that happens, it will allow Ethereum investors to stake their ETH and earn a passive income.
The required minimum is only 0.1ETH.
No. You will retain full control over your stake and can withdraw your Ethereum on specified time.
For staking your ETH and attesting to correct blocks, you will be rewarded with additional ETH through a network wide interest rate as well as receive a portion of network transaction fees.