Answer:
B
Explanation:
In order for any conduction to take place it needs to go through a solid. Therefore it cannot travel through empty space
The correct answer is C. Litmus Indicator
Answer:
There are essentially three methods used to produce ethanol:
Manufacture from ethene using steam (the "synthetic" route)
Production from sugars and starches by fermentation, using yeasts.
Production from biomass waste, using bacteria.
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