What is it called when living things start living in a place where no living things had been living before?

read the sentence below and answer the question that follows. one of the norms in the village was to meet at the town square on fridays for a community dinner and dance. the underlined word in the sentence above is best defined as a a. cultural element shared by all people around the world b. specific area in a town used for traditional community events c. religious custom accepted and practiced by all members of a village d. behavioral pattern that is regularly accepted by a group of people

these include the fossil fuels, oil, natural gas, and coal and nuclear energy. hope this ! ^.^

-ella