What are the most abundant elements in the Biosphere?

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Discussion Overview

The discussion revolves around identifying the most abundant elements in the biosphere, with participants sharing their lists and seeking clarification on the topic's context, particularly in relation to educational courses.

Discussion Character

  • Homework-related
  • Debate/contested

Main Points Raised

  • One participant lists Oxygen, Silicon, and Aluminium as the most abundant elements, expressing uncertainty about the accuracy of these figures due to varying sources.
  • Another participant questions the context of the term "biosphere," suggesting that the listed elements may pertain more to planetary abundances rather than biological relevance.
  • A later reply proposes additional elements such as Hydrogen, Carbon, and Nitrogen, emphasizing their significance in biological contexts.
  • One participant acknowledges the input from another, indicating that the suggestions were helpful in refining their understanding.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the most abundant elements in the biosphere, with multiple competing views and uncertainties present regarding definitions and contexts.

Contextual Notes

There is a lack of clarity regarding the specific educational context of the question, which may influence the interpretation of "abundance" in relation to the biosphere.

Hybr!d
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My list is this.

1) Oxygen with 51%
2) Silicon with 25%
3) Aluminium with 7%
4) Others
I am not sure of these because I found them on the web and every site is different. I want to make sure so please anyone with Information post.

Thanks :)
 
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Anyone got the answers because I really need it. Thanks
 
This is supposed to be in Homework help. You say "biosphere." Is this for an environmental science course, 8th grade general science, or what? What you've listed for the first four are "planetary abundancesk," of which the "big eight" are O, Al, Si, Na, Mg, Ca, K, Fe; not much life there. What your text, instructor, or course outline means by "biosphere" can not be intuited without you informing us about the level and title of the course.
 
Hybr!d said:
My list is this.

1) Oxygen with 51%
2) Silicon with 25%
3) Aluminium with 7%
4) Others
I am not sure of these because I found them on the web and every site is different. I want to make sure so please anyone with Information post.

Thanks :)
Well others is all the other 89 naturally occurring elements.

Try hydrogen, as in two atoms of H for each atom of O in a water molecule.

Then carbon is pretty abundant - in all the life that is part of the biosphere.

And nitrogen - 78% of air.
 
Thanks guys I got it. Astronuc thanks for your input because the suggestions you made where quite right :)
 

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