Generate a sentence that answers this question: "An example of combined substances could be".

Answer: An example of combining two substances is pouring one substance into the other substance


Generate a sentence that answers this question: "Ethanol sometimes might be".

Answer: ethanol sometimes is made of corn


Generate a sentence that answers this question: "Adding something poisonous to an environment and harming it is called what?".

Answer:
polluting means something poisonous is added to an environment causing harm to the environment