Explain how would you infer through an experiment that substances generate electric current

I would be explaining about Batteries for use of eletric current.

Explanation:

Take three resistances R1 ,R2, R3 and two ammeters and connect them in series.the ammeter will show in equal reading. This is an experiment to verify that in series that in series connection the current through each component is equal.

What is eletric current? How can you generate it?

Electric current can be generated by moving a metal wire through a magnetic field. This applies both to alternating current (AC) and direct current (DC) electricity. This is a different method than where DC is created by a battery, which uses chemical reactions

part 1: which substance has a higher solubility?

a

smallest amount left undissolved atall temps in table shown most has dissolved high sol'by

it is given that trillions of microbes make up to 1% to 3% of the body mass.

let's take average of this percentage: 2%

consider the average mass of the human body as 70 kg.

then, trillions of microbes would have mass  

therefore, 100 trillion micro-organisms would weigh:

this is an approximate value and could change depending on the mass of the human body and percentage of the microbes present in it.

average mass per microorganism =