5.6.168 - Hertzsprung-Russell diagram and stellar life cycles

Understand how to relate the Hertzsprung-Russell diagram to the life cycle of stars.

Use - hertzsprung-russell diagram and stellar life cycles to connect the rule to the data and decision in the question.

This matters because - hertzsprung-russell diagram and stellar life cycles determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply - hertzsprung-russell diagram and stellar life cycles to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: - Hertzsprung-Russell diagram and stellar life cycles is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.