Chemistry, 19.07.2019 11:00 rconyers00
About 20-25% of the 92 natural elements are known to be essential to life. which four of these elements make up approximately 96% of living matter? a. carbon, sodium, hydrogen, nitrogen b. carbon, oxygen, phosphorus, hydrogen c. oxygen, hydrogen, calcium, nitrogen d. carbon, hydrogen, nitrogen, oxygen e. carbon, oxygen, nitrogen, calcium
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About 20-25% of the 92 natural elements are known to be essential to life. which four of these eleme...
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