11. What is \"heat index?\" 12. Define relative humidity 13. How is relative hum
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11. What is "heat index?" 12. Define relative humidity 13. How is relative humidity different from specific relative humidity? 14. What does 100% relative humidity means? 15. Explain how wind affects body sensible temperature in the summer season. 16. Why is it important for humans to know the heat index level or factor in summer months? 17. Determine the heat index using the air temperature and relative humidity in the table below. Use the Heat Index Calculator at the following link. http://www.hpc.ncep.noaa.gov/html/heatindex.shtml Heat Index Temp. |(9 F) Air Temperature Relative Level of Exposure to Sun Stroke (OF) | Humidity (%) I-extreme danger, 11 = danger, 111 = extreme caution, IV caution 100 90 90 110 100 1 90 10 60Explanation / Answer
11) The Heat Index(HI) is an indicator of how hot it actually will be when the relative humidity is combined with the air temperature.
The heat index is also called as apparent temperature or humiture.
12)Relative humidity is the ratio of the amount of water vapor in the air to the maximum amount of water vapor the air can hold at that particular temperature which is expressed as a %.
RH = (The amount of water vapor in the air /Maximum amount of water vapor the air can hold at that particular temperature )*100
14) 100 % RH means that the air is completely saturated with the water vapor and it can no further hold any moisture.
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