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The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true

Miner's coal distributors does not mine coal itself, nor does it even store or handle the coal. instead, miner's solicits orders for low sulfur coal from other firms, then purchases the required amount from suppliers and directs them to ship the coal to its customers. what is miner's

Why do lunar and solar eclipse not happen every month