Well for this question you have to figure out what time zone honoluu is compared to New york and just subtract 15 from honolulu's time when new york is 12:00, this is all you need to know to slove this question so good luck!
Answer: Bassically, certain gasses like CO2 (Carbon Dioxide) that come from stuff like burning fossil fuels and global warming, they heat up the earth, are wastes and are used as fuel.
River System........................
Cold air is correct answer