Calculate the main-sequence lifetimes of the following stars of different spectral types: 
, 
, 
, 
,and 
.What trend do you notice in your results?
Definitions:
SCM
The directive process of managing the flow of physical goods, associated information, and financial transactions from the point of supply through manufacturing stages to the wholesaler, retailer, and ultimately to the consumer is the essence of Supply Chain Management.
Interorganizational
Interorganizational pertains to the relationships or interactions between different organizations, often involving collaboration, partnerships, or competition across organizational boundaries.
Intraorganizational
Pertaining to activities, processes, or interactions that occur within a single organization.
Extraorganizational
Activities, processes, or relationships that exist or occur outside of an organization's own boundaries.
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