Discuss these questions with your partner:

What do you observe about the Rocky Mountains and the Great Plains?
What do you think could have caused the rock formations in the Rocky Mountains and Great Plains to be so different yet have similar amounts of certain minerals?

What is the polyatamic ion of borate

An electron moved from shell n = 2 to shell n = 1. what most likely happened during the transition? a fraction of a photon was added. a photon of energy was absorbed. a fraction of a photon was removed. a photon of energy was released.

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