Assertion: potassium | /r/HasProperty | macronutrient
Facets:
Source sentences:
text: Apart from dating, potassium isotopes have been used as tracers in studies of weathering and for nutrient cycling studies because potassium is a macronutrient required for life.
text: Apart from dating, potassium isotopes have been used as tracers in studies of weathering and for nutrient cycling studies because potassium is a macronutrient required for life.
text: Various potassium isotopes have been used for nutrient cycling studies because potassium is a macronutrient required for life.[citation needed]