2. the water quality is "good" if the count of e coli is 0; otherwise, the water quality is still bad. calculate the proportion of wells with "good" water to wells whose water is not good. from this measure does it appear that the quality of water improved? explain and use the proportions that you calculated. (in g11 and h11 calculate the percent clean for before and after.)

Which type of stress results when two plates push against one another? a. compression b. tension c. force d. shear

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland

Calculate the ratio of h+ ions to oh– ions at a ph = 7. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of oh– ions at a ph = 7? mol/l what is the ratio of h+ ions to oh– ions at a ph = 7? : 1