Answer:
Wrap up in a thermal foil blanket
Explanation:
Thermal foil blanket reflects the heat of the body back to the body. In this way they keep hot the body of the wearer. You cannot cover yourself with snow because you will freeze and ultimately die. Wool clothes are warmer than cotton so, it is not good choice to change cloths from wool to cotton. If you will do exercise vigorously, you will be tired soon. Hence, warp up in a thermal foil blanket is the correct answer.
