Which anwser choice best describes a community

Community Definition. A biotic community, also known as a biota or ’biocoenosis’, is the group of organisms that live...

Types of Community. There are two main types of community. A major community is the smallest ecological unit which is...

Characteristics of a Community. The features within communities are highly variable, and there are a number of

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.

the rocks are classified by the geological process they are formed by. the three main groups of rocks are igneous, metamorphic, and sedimentary. minerals are not they are classified under the chemical classes they are in. these groups include silicates, sulfates and carbonates.