Answer:
Scientific method , hypothesis and theory is the correct answer to this question.
Explanation:
Scientific method:- The scientific method involves creating and making predictions based on evidence about the environment. It is described by its dedication to previous scientific world analysis and seeks to be unbiased, crucial, skeptical, and practical.
Hypothesis:- A hypothesis is a prediction of what is to be found at the result of a research study and is a national model on the partnership between various different factors studied in the studies.
Theory:- Social theory looks to interdisciplinarity, incorporating feedback from various academic fields to shed light on these complicated problems, and can draw on concepts from such diverse fields as geology and art history.
Twenty years because of slavery
Geographic isolation could be caused by a number of environmental factors. If a population of people or species live on an island, amongst mountains, in difficult to navigate terrain, or deep into rainforest or forests generally these groups could experience geographic isolation. Geographic largely occurs if a population or group of people or animals live in a remote region of the world that has little access to others due to any number of geographic features.
@b because you most likely want to pick the secondo one in multiple choice
Congress members, and most governmental businesses.