Assertion: acid rain's ph | /r/HasProperty | alkaline
Facets:
value: in some areas
type: LOCATION
Source sentences:
text: The pH scale ranges from 0 to 14, with a lower pH being more acidic, while a high pH is alkaline, and seven is neutral.
text: According to this measurement scale solutions with pHs less than 7 are described as being acidic, while a pH greater than 7.0 is considered alkaline (Figure 8h-1).
text: The pH scaleranges from 0 to 14 with lower pH being more acidic while a high pH is alkaline; seven is neutral.
text: In some areas, such as in Illinois, the average pH of a freshwater lake is an alkaline 8 to 9 because soils and rocks in the bottom and sides of the lake contain high levels of calcium and magnesium, which neutralize the acidity of rain.