Environmental science homework help

DISCUSSION; please include a page references
Define alkalinity and acidity. (6 Pts)
What apparatus and methods are used to determine alkalinity and acidity? (6 Pts)
What are the three major contributors to alkalinity in natural waters? (6 Pts)
Why must the alkalinity concentration of a given water source be considered in water
softening? (6 Pts)
What is the real world relevance of alkalinity and acidity in water? (6 Pts)