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A or B y’all ?

True or false, the three major scales used to measure earthquakes are mercalli scale, richter scale and magnitude scale

What does x represent in the formula for the compound xcl4?

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