Ok this might not be the best answer but just by reading it, it may be unreliable because numbers do change over time
I think it would be advantageous to observe mold colonies on an agar plate because one is able to observe colony structures, pigmentation, among others. Colony forming units are the individual colonies of bacteria,yeasts or mold. A colony of bacteria or yeast refers to a mass of individual cells of same organism, growing together.
The answer to this question would be Fermentation. This is a process that releases energy when oxygen is insufficient.
Answer:
a mineral is scraped or rubbed hardly on sandpaper or unglazed porcelain
( please mark me as brainliest that would be most appreiciated )