Because, if there's no summer the seasons won't be completed.
I believe the answer you're looking for is temperature and precipitation.
Climate is based on the amount of rainfall (i.e. a rainforest) or the temperature (i.e. a tropical climate)
C. when did the earth form? and what is it made of?
Properly dispose of hazardous productsPut up signs.
Use and dispose of harmful materials properly.
Volunteer in your community.
I think it this but hope it help u :)