Why does air at 75% relative humidity and 30°c make your skin feel stickier than air at 75% relative humidity at 10°c?

warm air rises while cold air falls.
the warmer air contains less water vapor per unit of volume.
the warmer air contains more water vapor per unit of volume.
moist air has lower density than dry air does.

1. the energy lost to disorder metabolism     -entropy

2. related to or possessing motion potential     -kinetic

3. all of the chemical reactions in an organism required for maintenance of the processes of life entropy     -metabolism

4. possible; ability to go into action or perform work kinetic     -potential

5. the study of energy and its transformations thermodynamics     -thermodynamics