researchers are studying linches growing on trees in a forest ecosystem. At the beginning of the study, the researchers identified twelve linchen species in the forest. Later, a forest fire happened in the study area. The researchers returned to the area and found only six linchen species. Which inference is best supported from the researcher’s observations?

They can infere that the surviving six lichen species are either genetically adapted to be fire resistant, or they recover very fast from an inferno situation. Whereas the other six that were wiped out were not adapted for these situations.

Explanation:

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.