In the Pacific Ocean, the Mariana Trench is roughly $10\,\text{km}$ deep. If sea water is taken to be incompressible and to have a density of about $1020\,\text{kg m}^{-3}$, what is the approximate pressure at that depth?
- A$10^5\,\text{Pa}$
- B$10^6\,\text{Pa}$
- C$10^7\,\text{Pa}$
- D$10^8\,\text{Pa}$