Primary succession occurs when new land is formed or bare rock is exposed, providing a habitat that can be colonized for the first time. For example, primary succession may take place following the eruption of volcanoes, such as those on the Big Island of Hawaii. As lava flows into the ocean, new rock is formed.
Folkways are the customs or conventions of daily life. They are a type of social norm expectations for how we act.
In sociology, folkways are generally discussed in contrast to mores because they are both types of social norms, though they vary in the degree to which they are enforced.
Folkways are mildly enforced social expectations, while mores are strictly held beliefs about behaviors.
Mores dictate right and wrong, while folkways distinguish between proper and rude behavior.