Which molecule could he make that consists of long chains of red and black colored balls? carbohydrates lipids nucleic acids proteins

carbon

explanation:

that is wrong, its not thymus.

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.

geologic time scale (for gradpoint) =)