Why does flex have a thin layer of plastic on outside
for insulation
because plastic is an insolator
cell membrane
The thin, solid, outermost layer of the Earth is officially known as the crust.
permafrost
All water starts to turn to ice at 0 degrees Celsius or 32 degrees Fahrenheit. it just depends how long you leave it to freeze. it usually takes about half an hour for a very thin layer of ice to appear on the top however it doesnt just freeze at the top, it freezes on the whole outside of the water so even if the top is a thin layer of ice after about an hour, there is a high chance that it is also frozen the whole of the outside to form like an ice container however the ice is very weak and even slightly touching it will cause it to break. hope this helps :)
because plastic is an insolator
Engineered wood.
plasma membrane
Cerebral Cortex
Cell (Plasma) Membrane
it is cell membrane
cell membrane
cell membrane
cell membrane
Epithelial tissue
it does not have a cloth covering. on the outside it is a thin coat of plastic then leather.
On my 2001 Jetta 1.8T, the outside of the plastic headlight housing gets yellow, probably due to UV light. I use Mother's Mag & Aluminum Polish, which removes the very thin layer of plastic (probably less than 0.001") that has yellowed.