Staking in crypto is a way you can earn interest on your coins. You deposit them for a fixed amount of time and allow developers to use them in the process of minting new coins.

Staking works in almost the same way you earn interest on a fixed deposit account in a traditional bank:

You deposit a minimum sum in the account for a fixed time, and the bank uses it to give out loans. On the agreed date, you get your money back plus interest.
Staking is one of the methods (the technical name is consensus mechanism) through which new crypto coins are minted or created. The other method is called mining.

Mining involves people using powerful computers to compete and guess the correct answer to a complex math question. This answer verifies new transactions on a blockchain.

Whoever finds the correct first earns the right to add a new page of transactions (or block) to the blockchain and receives a reward in a certain amount of crypto. This process is called the proof-of-work model.

The main problem with mining is that those competing computers use up a lot of electrical energy. According to critics, this energy consumption hurts the environment in the long term...more... https://alabiansolutions.com/blog/what-is-staking-in-crypto/