A ph may pertain-to ors.Logical formLearned from2 sentences. Parameters can be a ph.Logical formLearned from2 sentences. An enzyme may self-activate at ph.Logical formLearned from2 sentences. A buffer can be constituted-of-or-filled-with ph.Logical formLearned from2 sentences. A (ph balance) may pertain-to a body.Logical formLearned from2 sentences. (Check soil ph) may pertain-to a site.Logical formLearned from2 sentences. (Water ph) can be high.Logical formLearned from2 sentences. A ph may be caused by materials.Logical formLearned from2 sentences. Spinach may thrive in a (soil ph).Logical formLearned from2 sentences. A ph of a soil can be critical.Logical formLearned from2 sentences. (Ph levels) may change.Logical formLearned from2 sentences. An (equilibrium ph) may pertain-to a product.Logical formLearned from2 sentences. A range of (irrigation water phs) may depend on a crop.Logical formLearned from2 sentences. A ph may convert nitrogen to (ammonia gas).Logical formLearned from2 sentences. A ph of a solution may decrease.Logical formLearned from2 sentences.