These are objects in which accretion and mass loss are major determinants of both their appearance and evolution.
(These; are; objects in which accretion and mass loss are major determinants of both their appearance and evolution) (accretion and mass loss; are; major determinants of both their appearance and evolution; L:objects)
These accretion and mass loss
are are
objects in which accretion and mass loss are major determinants of both their appearance and evolution
major determinants of both their appearance and evolution L:objects