Why does a block of metal sink in water but the same size block of wood float?

the molecules in the metal are closer
together than the molecules of the wood.
the metal is more compact.

the molecules in the wood are closer together than the molecules of the metal.
the wood is more compact.

the wood has air in it, making it lighter.

the metal has more gravity, making it sink.

Wood is made up differently and it has less gravity. Wood also has air holes in it

the correct answer is option d.

an appositive is a noun, noun phrase or noun clause which follows another noun or noun phrase in order to describe it or name it another way. they are usually used between commas, brackets or dashes.

the example sentence with the correct use of commas is the following:

her uncle, the man over there in the red shirt, owns the hardware store in town.