Which is the best estimated pressure, represented in units of GPa, of the lower mantle? a. 110 GPa
b.220 GPa
c. 305 GPa
d.360 GPa

Nike lives in an area that has a south-facing slope. the temperature in his area is always high. which of these abiotic factors is responsible for high temperatures in nike’s area? a. nutrients b. soil c. water d. topography

The diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Which of the following statements best explains why there tends to be a greater number of large cities in southern africa than the east africa