APEX PRACTICE 2.3.4 PLEASE HELP YOUR ASSIGNMENT: Earth Traveler: Outward or Inward Bound In this assignment, you may work alone, with a partner, or in a small group. Discuss the results of your work and/or any lingering questions with your teacher. 1. Which option did you choose? Discuss with another student why you made the choice you made. (1 point) Troposphere (above the surface) Upper Crust (below the surface) Writing an Equation