Which of the following is NOT a proper ballistics evidence procedure:
A:Never submit a loaded gun the the lab.
B:Record serial number, make, model, and caliber of the weapon.
C:Place weapons in well packed, strong cardboard or wooden boxes.
D:You my handle firearm evidence without glove

The freezing and boiling point of a substance changes as the air pressure around it changes. for example, at a lower air pressure (higher altitude) it is easier for water molecules to escape from liquid into the air. in a high altitude city such as denver, colorado compared to a sea-level city such as houston, texas, water