When a sugar cube dissolves in a cup of coffee (an endothermic process), entropy changes of the sugar plus water, the surroundings, and the universe respectively are: a. negative, positive, positive
b. positive, negative, negative
c. positive, positive, positive
d. negative, negative, negative
e. None of these are correct.

What are the choices?

The answer is d- principle of faunal succession.

Answer    "a salt" would be the best answerexplanationsalts can be defined as ionic compounds that are neither acids nor bases. nacl is an example of a salt, and its ionic.an enzyme is an organic compound which is covalently bonded, not ionically bonded.acids are generally held together by covalent bondsan element does not need any bonds to exist

The phase where ice changes directly to gas is called sublimation