Below are possible answers for the crossword clue Target of some pH tests.
4 letter answer(s) to target of some ph tests
SOIL
make soiled, filthy, or dirty; "don't soil your clothes when you play outside!"
material in the top layer of the surface of the earth in which plants can grow (especially with reference to its quality or use); "the land had never been plowed"; "good agricultural soil"
the geographical area under the jurisdiction of a sovereign state; "American troops were stationed on Japanese soil"
the part of the earth's surface consisting of humus and disintegrated rock
the state of being covered with unclean things
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