Physical. You are only moving the matter (snow) into a different shape. Hope this helps!
The transparent film laminated to a fabric is identified in the study material as PVC. PVC or polyvinyl chloride is a type of synthetic resin. For fabric, PVC on fabric is typically plastic-coated polyester, and is more resistant to wear and tear than others.
<span>Nuclei of u-238 atoms are </span><span>unstable and spontaneously emit alpha particles.</span>
If by chance you mean any wave, the wave with the shortest wavelength/highest frequency is gamma rays.