Determination of specific cells for certain functions changes resulting from induction the occurrence of mRNAs for the production of tissue-specific proteins changes in the size and shape of the cell cell.
Answer:
are you talking about for a person or an animal?
Answer:
Rock particles can become pollutants by/from the wind. That is called erosion.
They can also become pollutants from man-made tools. For example a tool the polishes rocks releases all the dust and powder substance from the rock into the atmosphere.
There are also minute volcanic which are rock fragments formed during explosive shattering of sticky magma.
It could be C or A but I’m leaning towards C