Help anybodyyy ? i need this rn

Of seawater increases with decrease in the temperature. therefore, the cold water sinks to the deeper layers at the bottom

The nervous system interacts with the endocrine system by a. using hormones as connections b. sending nerve impulses directly to glands c. using neuroendocrine cells as connections d. sending neurotransmitters directly to neurons

Why do oceanic plates tend to subduction when colliding with a continental plate