Thermohaline currents are defined by temperature and density.

nearness to the surface.

the area in which they flow.

the fact that they all flow north.

correct answer is a. and d.

gold i'm pretty sure i might be wrong

succession returns a disturbed

ecosystem to a more stable state. this is also classified into two (2) types:

primary succession and secondary succession. the primary succession arises when

a new land is transformed and a bare rock has been exposed providing an environment

that can be occupied for the first time. while, secondary succession occurs

when a previously occupied environment was disturbed that kills much of all its

community

explanation: