Answer:
B. X is the answer, hope it helps
Explanation:
I believe numbed 4 is the answer, the others really don’t make any sense
Answer:
10
Explanation:
i dont know this is right answer
<span>A continuous spectrum is one where the light emitted goes along the entire spectrum. A line spectrum is one that only emits a few frequencies. </span>
B- lack of control.
the scientists did not have a proper control group.