In a convection cycle, what causes plastic-like material to sink is: A. It loses heat to the crust.
What is convection cycle?
Convection cycle can be defined as the process that lead to why fluid or material sink after being heated.
During the convection cycle plastic like material tend to sink is because the heated molecules becomes large and rises while the cooler molecules or fluid sink.
Therefore the correct option is A.
Learn more about convection cycle here:https://brainly.com/question/25957304
#SPJ2
