A Study of the Planet Earth (471 words, 2 pages)
- There are 92 naturally occurring elements, only 17 of them make up 99.5 ofthe earth's crust (including oceans and atmosphere). - In living things (plants,animals, people) the six most abundant elements are carbon, hydrogen, oxygen,nitrogen, phosphorus and sulfur. - The universe is dominated by the elementshydrogen (83) and helium ...
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