The three colors of cellophane serves as the light source for the set-up. The three colors would give different wavelengths of light to the sample in the jar. It is the independent variable in this experiment. Hope this answers the question.
Answer:
Core
Explanation:
The innermost layer is the hottest.
Argon since it’s a noble gas which have complete octets and valence shells
Jsjsjsjsksksksksksskskskskskjsskskskk