Under a comparison microscope, investigators look for matching markings or striations.

true
false

True

Explanation:

A comparison microscope, as its name describes, allows display of two microscopic views side-by-side so that they can be compared. Used as a forensic tool, such microscope can be used to examine markings on bullet so as to identify the gun which shot the bullet. So the statement is true.

The answer is True.

A comparison microscope is essentially a double microscope that scientists use to compare similar types of specimen. They are both connected by an optical bridge and when you look in you can see two different objects at the same time. This microscope is used to see if the specimen are similar which makes out answer true.

Best of Luck!

the relative atomic mass of an element is the mass of one atom of that element, relative to 1/12th of the mass of a  1212c atom. to convert to an absolute mass in kg, it is necessary to multiply by  1.661×10−271.661×10−27.

the relative atomic mass is roughly equal to the number of neutrons, plus the number of protons, in the nucleus of the atom.

for elements with more than one stable isotope (different types of nucleus with different numbers of neutrons but the same number of protons), the quoted mass is usually the average mass, weighted by the relative abundance of the different isotopes.