Self registering thermometers: record only the maximum and minimum temperatures they are exposed to record only the minimum temperature they are exposed to record only the average temperature they are exposed to record only the maximum temperature they are exposed

i believe the answer is a

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.

float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in it

305.7

explanation:

density =m/v

density =917/3.00

density = 305.

approximately = 305.7

in four significant figures