walking on concrete or asphault services, entering buildings that involved the use of materials transported by train, plane, of truck or making use of any form of transportation tha involves the use of fossil fuels in any way. (notrickszone.com)
Convection, or the flow of mantle material transporting heat, drives plate tectonics. (sciencedaily.com)
This suggests that material from the outer Solar System was incorporated into Ceres, either during its formation at great heliocentric distance or by incorporation of material transported into the main asteroid belt.» (americaspace.com)