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5 votes
Choose all that apply. Which of the following are not considered to be elements essential for life?

Potassium (K)
Sodium (Na)
Iron (Fe)
Aluminum (Al)
Silicon (Si)
Magnesium (Mg)

2 Answers

2 votes

aluminum and silicon are not essential for life

User Valentinmk
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8.2k points
2 votes
Al, Si, Mg
All other elements seem more necessary in life

User Lneuner
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