Which events most likely occurred at the boundary between the South American Plate and the Nazca Plate? Check all that apply. destruction of crust
creation of rift valleys
formation of a trench
separation of two plates
subduction of one plate

He table below gives the atomic mass and relative abundance values for the three isotopes of element m. relative abundance (%) atomic mass (amu) 78.99 23.9850 10.00 24.9858 11.01 25.9826 what is the average atomic mass (in amu) of element m? 2.86 5.36 24.30 24.98