You could provide liquidity with single input coin, including ETH, USDC, USDT or DAI.
You could earn a portion of transaction fees in proportion to the amount of liquidity you provide. There are two parts, trading fees of interest pool and trading fees of lending pool.
——Trading fees of interest pool
——Trading fees of lending pool
——Ratio of trading fee in lending pool, from 0.01% to 0.2%
——Liquidity Provider's earnings