By which of the following method ice will melt faster:1.      Blowing hot air from mouth2.      Rubbing ice with woolen gloves

The rate at which ice melts depends on the amount of heat it receives. Here are the steps to understand which method would melt ice faster:

1. Blowing hot air from mouth: When you blow hot air on ice, you are transferring heat from your body to the ice. The warm air will cause the ice to absorb heat and melt. However, the amount of heat you can transfer by blowing air from your mouth is limited.

2. Rubbing ice with woolen gloves: Wool is a good insulator, meaning it doesn't easily allow heat to pass through. When you rub ice with woolen gloves, the friction between the gloves and the ice generates heat, which can cause the ice to melt. However, because wool is an insulator, it may not transfer as much heat to the ice as direct contact with a warmer substance would.

In conclusion, blowing hot air from your mouth would likely melt the ice faster than rubbing it with woolen gloves, because the direct transfer of heat from your warm breath to the ice is more efficient than the indirect heat transfer from friction with the gloves. However, this could vary depending on factors like the temperature of your breath and the thickness of the gloves.