<span>If you match the physical properties of a substance you dont know about to the properties of a known substance, you now know what you've got. For example, if you know that compound X is bright yellow and screams when you poke it, an unknown sample that is yellow and screams that you poke it is probably compound X. trust me, im a dog in a suit.</span>
Answer: dynamically modified model
Explanation:
Presentation software is probably his best option. It would allow him to present visual and audio supplements to his audience.
Answer:
I would say b but if I'm wrong take the point back
