Which element is it more difficult to take electrons from? Barium or Strontium ? Explain why?

The answer is b because c don't explain why the moths are on them and it isn't a because as we know only one species of moth does this

Sorry i dont understand the question can you rephase it?

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