Answer:
I would say B- it was uncalibrated
Explanation:
he did not take the time to make sure it was calibrated before use
Needs more info to answer question
I dont know what animation you mean about but i will give my opinion.
ATP are used for energy, they are made inside mitochondria. Mitochondria use oxygen and food to make ATP, which is maybe what u mean by rechargable is because whenever you eat, the mitochondria will produce energy again and again.
PH meter, which is a device used to measure hydrogen-ion activity in the solution. A PH meter is a voltmeter stuck to a pH electrode and a reference electrode. -maclittleseed
