Can humans be secondary consumers?

Secondary consumers include owls, bears, lions and humans – along with many other organisms, and can be considered the predators in a given ecosystem. Many secondary consumers are carnivores, some of which are eaten by tertiary consumers.

Yes. Secondary consumers are like little animals  and big, such as birds, humans, rats, etc.

✿   this landform has a high elevation and a high relief

✿   this landform is a mountain

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.