The Rocks have remained on top of the screen, while the sand and water have passed through it.
Answer:
the correct answer B. carboxylic acid
Explanation:
carboxylic acid, any of a class of organic compounds in which a carbon (C) atom is bonded to an oxygen (O) atom by a double bond and to a hydroxyl group (―OH) by a single bond. A fourth bond links the carbon atom to a hydrogen (H) atom or to some other univalent combining group.
They have high melting and boiling points and are hard and brittle
Answer: Opaque hope this is helpful
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