15 Who am I? (Each clue represents a single Element)
a) I am essential to human beings for their healthy teeth and bones.
b) I am 78% in the air. I am responsible for growth of plants.
c) I am used to kill bacteria in drinking water
Answers
Answered by
0
Answer:
Nitrogen is only the element
Answered by
1
Answer:
1 protein
2 nitrogen
3 I dont know
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