The terms 'Ethereum, Solana, Polkadot and Tether', sometimes mentioned in the news, refer to
- A.Cryptocurrencies
- B.Earth Observation Satellites
- C.Hypersonic Cruise Missiles
- D.Virtual Private Network service providers
Show answer
Ethereum, Solana, Polkadot and Tether are all names from the world of blockchain-based digital currencies. A cryptocurrency is a digital asset recorded on a blockchain, a shared ledger kept by many computers, and secured by cryptography rather than issued by a central bank.
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