Gas - Blockchain

"Gas" is a fee that must be paid for a transaction / transfer to be performed, or a "smart contract" to be able to run on Ethereum's "blockchain". Most cryptocurrencies have a form of fee similar to "Gas" when one of these processes is to take place, and it is paid in the form of the currency of the currency in question.

It is then the sender or the person who wants to perform the contract who must pay a "miner" or "staker" for the transaction to take place on the network. The price for such a fee varies in relation to the supply and demand of processing power, which protocol the relevant cryptocurrency uses, or how many "stakes" are available on the relevant "blockchain".

Read more about the topics of cryptocurrency if you want to learn more about this.