Question: Here's a question: Why would someone stop having food?  Here are possible answers to this question: - getting fat - being full - weight gain - hungry - eating food  I believe the correct choice is "being full", here's why:
Answer: being full is the only answer that has anything to do with not eating any more

Question: Here's a question: What common chemical reaction is often used as a heat source?  Here are possible answers to this question: - coal or wood - fire - lava - house - solar energy  I believe the correct choice is "fire", here's why:
Answer: it's the best option of them all.

Question: Here's a question: Where is a good place to keep many a pencil?  Here are possible answers to this question: - office depot - cup - pencil shop - shelf - classroom  I believe the correct choice is "cup", here's why:
Answer:
cup definition of cup in english