30.6 • 150 is the same as 4,500 + 90, or 4,590 million kilometers, oddly enough, this isn't one of the options for an answer. Perhaps there was a typo?
Answer:
C
Explanation:
For productivity to increase, it require an increase in the input which has to be directly proportional to an increase in the output
It's the 4 the answer I hope it has served you
C: Exposing the plant to a higher light intensity
