Ojos del Salado is the highest mountain in Chile, with a peak at about 6,900 meters above sea level.
• The Atacama Trench, just off the coast of Peru and Chile, is about 8,100
meters below sea level at it's lowest point.
Is the elevation HALFWAY between the peak of the mountain and the
Trench ABOVE OR BELOW sea level? Explain your answer without
calculating the exact value