Assertion: heavy metal | /r/HasProperty | essential
Facets:
value: for healthy plant growth
type: PURPOSE
value: to health in trace amounts
type: OTHER
value: to life
type: OTHER
value: for healthy biochemical and physiological function
type: PURPOSE
Source sentences:
text: Many metals, particularly heavy metals are toxic, but some heavy metals are essential, and some, such as bismuth, have a low toxicity.
text: Heavy metals like co pper are the essential
text: Some heavy metals are essential minerals for healthy biochemical and physiological function.
text: However, some heavy metals, such as copper and zinc are also essential elements.
text: Some heavy metals – such as cobalt, copper, iron, manganese, molybdenum, vanadium, strontium, and zinc – are essential to health in trace amounts.
text: Heavy metals normally occur in nature and are essential to life but can become toxic through accumulation in organisms.
text: Some soils are deficient in the heavy metals (such as Co, Cu, Fe, Mn, Mo, Ni, and Zn) that are essential for healthy plant growth , and crops may be supplied with these as an addition to the soil or as a foliar spray.
text: Heavy metals like copper are the essential
text: Some heavy metals including cobalt (Co), copper (Cu), chromium (Cr), iron (Fe), magnesium (Mg), manganese (Mn), molybdenum (Mo), nickel (Ni), selenium (Se) and zinc (Zn) are essential minerals that are necessary for various biochemical and physiological functions.