Question

study the diagram about the varying pressures of earths layers. which is the best estimated pressure, represented in units of gpa, of the lower mantle? 110 gpa 220 gpa 305 gpa 360 gpa

Explanation:

Step1: Identify layer depth range

Lower mantle: 410 km to 2900 km

Step2: Match pressure to depth range

The top of the outer core (2900 km) has 125 GPa. The lower mantle lies above this, so its pressure must be less than 125 GPa. 110 GPa is the only option that fits this range.

Answer:

110 GPa