Most people can survive only a few days without water, and water combines hydrogen and oxygen. Given these facts, most people can survive only a few days without a combination of what among the following options:
- dehydration
 - hydrogen and oxygen
 - food and shelter
 - hydrogen chloride and water
 - scarce resources
 - solid, liquid, gas
 - lemonade and ice water
 - watercolor paints


 

  hydrogen and oxygen       