True or false- it is possible for a given substance to absorb one frequency of light and reflect a different frequency.

FALSE

Explanation:

To answer this question we must clarify that for a given approach to exist there must be a transition between two atomic levels of the material.

For the emission, the transition between two determined states must also occur, therefore the radiation emitted is equal to that absorbed.

Consequently the statement is False

one "light year" is the distance that light travels, through vacuum, in one julian year.   that's 365.25 days, of 24 hours each.