In Chapter $15,$ Supply Chain risk management was introduced. Fundamentally, there are four important categories that need to be analyzed in this domain, i$.$e$.,$ uncertainty, risk, disturbance $($the so$-$called perturbation impact$),$ and disruption $($operational deviations$).$ Explain how these four elements are mutually connected. Summarize uncertainty factors and the corresponding handling measures. Explain the seven different supply chain risks.