Question

What is fingerprint powder made of?
A) Rosin B) Black ferric oxide C) Lamp black D) All of the above

Answer 1

Answer:

Fingerprint powder is composed of many different ingredients that can vary greatly depending on the formula used. Most black fingerprint powders contain rosin, black ferric oxide and lampblack. Many also contain inorganic chemicals such as lead, mercury, cadmium, copper, silicon, titanium and bismuth.

Answer 2

Answer:

this answer is D. All of the above