For much of the last quarter century, the leading theory of the driving force behind tectonic plate motions envisaged large scale convection currents in the upper mantle, which can be transmitted through the asthenosphere. So letter C. is the Answer.
Answer:
There is no attachment with this question so I can't answer this question.
Because they have selective mutation and each time an organism/animal reproduces they get half of their parents chromosomes. therefore each and every single organism/animal will be unique