The correct answer is 9πr^2
I know because I just took the quiz.
Answer:
Explanation:
The Relationship between Rainfall and Temperature. The physical rationale behind the relationship between rainfall and temperature is that rainfall may affect soil moisture which may in turn affect surface temperature by controlling the partitioning between the sensible and latent heat fluxes [41].
4.6 billions years old, take or give a few million yeras