For full credit, student:

A) Discusses patterns of greenup and senescence around his/her home citing specific examples (e.g. all the leaves fall in October/November, so this is the period of scenence, the grass grows the most in June-August, so this is a period of maximum greenup.)

B) Relates the patterns of greenup and senscence to seasonal cycles of insolation (e.g. in the Northern Hemisphere we receive maximum insolation from May - July so this relates directly to the period of maximum greenup).

For partial credit, student does either A or B, or does each partially, or cites incorrect information in his/her discussion.