What risks in scope, schedule, resource or budget uncertainties have you encountered in the various projects you

Question:

What risks in scope, schedule, resource or budget uncertainties have you encountered in the various projects you were involved with that could have led to project risk impact? 2: Why would risk 'rating' be useful to present identified scheduling risks to in any project worldwide?
Stakeholders
A person, group or organization that has interest or concern in an organization. Stakeholders can affect or be affected by the organization's actions, objectives and policies. Some examples of key stakeholders are creditors, directors, employees,...