Gas (Ethereum)
Gas, in the context of Ethereum, refers to the fees associated with executing transactions and smart contracts on the Ethereum blockchain. Gas is a measure of the computational power required for each action and the time it takes to execute. These costs are denominated in gwei, which is a fraction of an ether (ETH). Gas serves the purpose of rewarding validators who maintain network consensus and acts as a deterrent against spam and malicious activities on the network.