At sea level, atmospheric pressure is $100\,\text{kPa}$, while the density of air is $1.3\,\text{kg m}^{-3}$. Suppose that the density of air falls linearly with height above sea level. Based on this, what estimate can be made for the atmosphere’s total height?
- A$7.8\,\text{km}$
- B$16\,\text{km}$
- C$77\,\text{km}$
- D$150\,\text{km}$