Consider a hypothetical planet whose ocean is receiving DIP from rivers much like ours, and is subject to mixing via upwelling and downwelling at the same rate as ours, However, the key difference is that its deep-ocean DIP concentration is only one half that of our ocean. This hypothetical ocean is in steady state. Please answer the following questions using values given in Table 1. Table 1. Parameters for hypothetical ocean. Symbol Description Value Units Comments R River water ow rate 3.5613 m3 yr" Same as Earth's ocean w Rate of vertical mixing 1.26e15 m3 yr" Same as Earth's ocean JP Rate of P transport to deep ocean in particulate form determine mol yr" (via the biological pump) BP Rate of P burial determine mol yr" [DIP]R DIP concentration in river water 1.3e-3 mol rn'3 Same as Earth's ocean [DIP]s DIP concentration in surface seawater 0.15e-3 mol m"3 Same as Earth's ocean [DIP]D DIP concentration in deep seawater 1.26-3 mol m"3 Half of Earth's ocean a. Using a steady-state 2-box ocean model for DIP, nd the value for Bp. Please report your answer in units of mol/yr. [4 pts]