Deep brain stimulation (DBS) is a technique developed to treat neurological disorders through direct brain electrostimulation and presently used to treat severe Parkinson's Disease patients that suffer from extreme motor dysfunction (tremors) caused by the condition. The importance when electrically dealing with the brain is size and material used to make the needed electrodes
decreased ability to survive changing conditions
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Sorry that person didn’t help but your answer is
removal of vegetation, production of paper, construction production, and agricultural production
B A D C (I think not 100% on this one)
Convection keeps the earths surface warm
