Cloud mining is the process of cryptocurrency mining utilizing a remote datacenter with shared processing power.
This type of cloud mining enables users to mine bitcoins or alternative cryptocurrencies without managing the hardware.
The mining rigs are housed and maintained in a facility owned by mining company and the customer simply needs to register and purchase mining contracts or shares.
Since cloud mining is provided as a service, there is generally some cost and this can result in lower returns for the miner.

Polygon (formerly Matic Network) is a blockchain platform that enables blockchain networks to connect and scale. It aims to create a multi-chain blockchain ecosystem compatible with Ethereum. As with Ethereum, it uses a proof-of-stake consensus mechanism for processing transactions on-chain. Polygon's native token is named MATIC. Matic is an ERC-20 token, allowing for compatibility with other Ethereum based digital currencies.

Polygon is used in decentralized applications (dApps) such as Defi, DAOs, and NFTs.