What is the price and gas limit in Ethereum?

Gas is a unit of measurement that determines the amount of commission received by miners for transactions on the Ethereum blockchain. The gas limit is the maximum amount of gas that the user is willing to pay for a certain action. The minimum gas limit is 21000. The price of gas is calculated by the amount of gwei that the user is willing to pay for each unit of gas. The user himself sets the price and gas limit. The higher the price of gas, the more priority the transaction for miners.