Atechnique that records electrical activity of the brain is called

answer: electroencephalography (eeg) is an electrophysiological monitoring method to record electrical activity of the brain. it is typically noninvasive, with the electrodes placed along the scalp, although invasive electrodes are sometimes used, as in electrocorticography.

b is the best answer for this question.

a. decomposes use carbon from dead organisms as fuel for cellular respiration, returning carbon dioxide back into the atmosphere.