the answer is tectonic plates
Organized religion (or organised religion—see spelling differences), also known as institutional religion, is religion in which belief systems and rituals are systematically arranged and formally established. = Formal A functional definition concentrates not on what religion is (its beliefs and practices, for example) but on what these beliefs and practices do for the individual and the social group – on the needs they fulfil (for example, in providing or contributing to bonding, identity, comfort, and security). = FUNCTIONAL Beyond "vernacular geography," a "vernacular region" is a distinctive area where the inhabitants collectively consider themselves interconnected by a shared history, mutual interests, and a common identity. Such regions are "intellectual inventions" and a form of shorthand to identify things, people, and places. = VERNACULAR
Egypt is not one of the borders
I would go with D, because acid can be reduced by using it less
