In continuous reinforcement, an organism is reinforced , whereas in partial or intermittent reinforcement, an organism is reinforced .

In continuous reinforcement, an organism is reinforced every time the desired behavior occurs, whereas in partial or intermittent reinforcement, an organism is reinforced sporadically when the desired behavior occurs.

the correct answer is 4) heat and pressure

metamorphic rocks arise from transformation of existing rocks types, in a process called metamorphism. during metamorphism the original rock(prolith) change into metamorphic rock by heating (150-200c) and pressure of more than 1000 bar. the original rock can be sedimentary, igneous, or existing metamorphic rock.