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How have the greenhouse gasses increased from the year 2000 to 2018

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

Which element would mostly likely have an electron affinity measuring closest to zero