Which of the following materials is not considered to be a semiconductor? germanium tin silicon aluminum

Tin and Aluminum are not considered as semiconductors but rather conductors themselves because they are metals. Semiconductors are in general elements from column IV or or compounds of columns III and V of the periodic table.

Germanium and silicon are semiconductors because they are metalloids.

Ithink this is what you meant. the temperature at which a liquid begins to boil is called the boiling point. the boiling point of water is 212°f or 100°c.  and at that point will start to turn into steam (gas)

The answer is celsius