What are the differences among the mineral components of hard water, soft water, distilled water, and filtered water?
?Hard water contains a high calcium and magnesium content, soft water contains a high sodium or potassium content, distilled water contains very few dissolved minerals, as they have been removed in the distillation process, and filtered water has very low levels of lead, arsenic and micro-organisms, but leaves the majority of minerals in concentrations similar to what they were before filtration.
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On average, U.S. intakes of vitamin E _____ recommendations
1.are significantly higher than DRI 2.meet DRI 3.fall substantially below DRI 4.not enough information to determine
During the first trimester, the fertilized egg is called a(n)
A. fetus. B. placenta. C. embryo. D. zygote.
What mineral deficiency is linked to restless leg syndrome?
a. calcium b. iron c. copper d. lithium e. boron
Displacing milk with soft drinks causes many children to have a low intake of ___.
A. beta-carotene B. vitamin A C. vitamin D D. vitamin C