Earth ?
Its diameter is less than
one-half the length of
Earth's diameter
Venus
?
Its atmosphere contains
thick clouds of sulfuric
gas.
Mars
?
Its atmosphere is mostly
nitrogen
Mercury
It experiences large dust
storms

This is what i found on google“ the monomers combine with each other via covalent bonds to form larger molecules known as polymers. in doing so, monomers release water molecules as byproducts. this type of reaction is known as dehydration synthesis, which means “to put together while losing water. in the process, a water molecule is formed.” i hope this you

Ithink the answer is d.

Hey .a. is the correct option