which of the following stains were made on a porous surface? * option 1 option 2 option 3
which of the following stains were made on a porous surface? * option 1 option 2 option 3
Answer
Brief Explanations:
Porous surfaces allow liquid to seep in and spread irregularly. Option 2 and Option 3 show stains with uneven, spread - out edges which are characteristic of stains on porous surfaces. Option 1 has a smooth, round shape typical of non - porous surfaces where liquid does not seep in easily.
Answer:
B. Option 2, C. Option 3