Business risk arises from uncertainty in a company's internal or external environment and can negatively impact objectives. It takes various forms like new technologies or changes in economic policy. Risks come from internal sources like accidents or externally from political, economic, social, natural, and technological factors. Companies analyze risks, identify potential impacts, and design strategies like insurance, diversification, and research to manage risks and help decision-making, profits, and goals. However, measuring business risk is difficult due to its complex, uncertain, and variable nature.