glass
Glass because it is a poor conductor of heat. Aluminum is highly conductive, which means that when you pick it up the heat from your hand would move quickly through the aluminum and into your drink.
Drinks would stay cooler for a longer time if it is in a bottle. This is because bottles are insulators of heat. So they slow down the heat from reaching the liquid in it. As in cans, which are metal, they are conductors of heat. So heat penetrates easier to the liquid thus making the drink to loose it's coldness faster. So my bet is that drinks stay cooler in a bottle.
aluminum
It would definitely have to be plastic wrap because plastic wrap is an insulator, which aluminum is not.
If the aluminum and wooden window frame are at the same location they must be the same temperature. Since aluminum conducts heat more readily than wood it will conduct body heat away from your hand more readily and feel colder.
Then the years would be longer, and in general it would be colder.
It depends were you are, generally it would stay colder if you left it in the water
I would say the glass of coke (served with ice-cubes in it) is colder than the can. The melting ice-cubes in the glass of coke hold it at constant freezing/melting temperature (32F), the can of coke comes out of the refrigerator at the same temperature as the refrigerator (~35F) and warms from there.
I would have to say aluminum foil, since radiation can travel through glass. radiation is reflected from the surface of aluminum foil. With a mirror the radiation has to travel through a small layer of glass twice before the mirror is finished with it. Glass is not totally transparent, some light is absorbed so the naked aluminum reflects better.
If the Earth was 20C colder than today, we could have to wear a thicker shirt or a longer jumper as we would be colder. Nothing drastic!
idkk lol
An aluminum fence would last longer. They do not rust and the wood would deteriorate from wind and temperature and possibly termites.