Why isn’t it possible for the reaction to occur as indicated by the unbalanced equation

6.4 cm (max) - 25 cm (min)

i just calculated it all out, and not including weekends, and all the different days off. as of this school year (2018-2019) students are spending 2198 hours in school this year

geosphere and hydrosphere.

this is because the geosphere has to do with geological events, while the hydrosphere controls all water on earth.