Suppose you and a group of friends were planning to run a 10-mile race. You check the Air Quality Health Index and find that the AQHI for today is "5." Assume one of your friends has severe asthma. What would Environment health warnings suggest you do about the race?

A. ​it generates energy from carbohydrates.b. it requires activation by oxygen.​c. ​it is used by cells to dispose of excess electrons

Answerδh > 0explanationc₆h₆  (s)  → c₆h₆ (l)if you are changing it from a solid to a liquid, you are pretty much melting the solid. this requires heat energy. therefore, the reaction is endothermic (takes in energy); the system enthalpy increases as the reaction proceeds: δh > 0.

The answer is a its density hope i