George is at a water park with his family. he needs to get a tube to use for one of the rides, and he chose his color first. there are black tubes, dark purple tubes, dark blue tubes, and yellow tubes. each member of his family had to choose a different colored tube. george chose a yellow tube, because he thought it would be the coolest. after everyone chose a tube, he touched all of the tubes. the yellow tube was the coolest. how do you think george knew that the yellow tube would be the coolest?

answer: i think it is (1,-2)

"it's not the heat, it's the humidity".   that's a partly valid phrase you may have heard in the summer, but it's actually both.   the heat index, also known as the apparent temperature, is what the temperature feels like to the human body when relative humidity is combined with the air temperature.   this has important considerations for the human body's comfort.   when the body gets too hot, it begins to perspire or sweat to cool itself off.   if the perspiration is not able to evaporate, the body cannot regulate its temperature.   evaporation is a cooling process.   when perspiration is evaporated off the body, it effectively reduces the body's temperature.   when the atmospheric moisture content (i.e. relative humidity) is high, the rate of perspiration from the body decreases.   in other words, the human body feels warmer in humid conditions.   the opposite is true when the relative humidity decreases because the rate of perspiration increases.   the body actually feels cooler in arid conditions.   there is direct relationship between the air temperature and relative humidity and the heat index, meaning as the air temperature and relative humidity increase (decrease), the heat index increases (decreases).

step-by-step explanation: