How does a large, complex system like the Earth system operate

Explanation:

Scientists increasingly view earth as a dynamic system. A combination of interrelated interdependent or interacting parts forming a collective whole or entity

a. as the temperature increases, the kinetic energy of the gas molecules increases & the molecules move faster & further away from each other.

b. if you decrease the temperature of a fixed amount of gas at constant pressure, the combined gas law reduces to charles's law. in this case, volume will also decrease.

i believe the answer is a or 1