The hydrosphere takes up just over 18% of the remaining mass that makes up the four earth systems, the atmosphere less than 1%, and the biosphere just 0.00008%.
1. The elements with the highest abundance in the Earth's biosphere are oxygen, nitrogen, hydrogen, and carbon.
Magnesium, chloride, sulfur, sodium, oxygen, silicon, iron, aluminum, calcium, potassium, hydrogen, and nitrogen are the elements that can be found in the biosphere.
The abiotic and the biotic are the two parts of the biosphere.
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