Assignment:
Q1). How did water form on the Earth's Surface? Is there more than one theory? Explain
Q2). Does soil humus act as if it has a positive or negative charge at neutral pH?
Q3). Explain how volcanic erruptions can cause year long cooling in the mean global surface temperature. Why does the effect of a eruption last do long?
Your answer must be, typed, double-spaced, Times New Roman font (size 12), one-inch margins on all sides, APA format.