Answer:
The girl exerts more pressure.
Step-by-step explanation:
To determine who exerts more pressure, we compare the pressure exerted by the girl wearing heels and the pressure exerted by the elephant's foot.
(a) The girl exerts a pressure of approximately 4.9 * 10^6 Pascal (Pa).
(b) The elephant's foot exerts a pressure of approximately 1.568 * 10^6 Pa.
Comparing these pressures, we can see that the girl wearing heels exerts a higher pressure than the elephant's foot. Therefore, the girl exerts more pressure.
This can be attributed to the smaller cross-sectional area of the girl's heels compared to the larger foot area of the elephant. The same force (weight) is distributed over a smaller area in the case of the girl, resulting in higher pressure.