Answer Posted / Rukmani Gunjiyal

Each block in a blockchain typically consists of four main elements: (1) Block header, containing metadata like version number, timestamp, hash of the previous block, and a nonce; (2) Transactions data, which is a list of all transactions included within the block; (3) Merkle root, a cryptographic hash of all transaction hashes in the block to ensure the integrity of the data; (4) Optional additional data, such as reward for miners or comments.

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