Noble gases are supposed to be the least reactive elements so I’m assuming Neon would be the most least reactive out of all of them.
Explanation:
no.A (He) I think.............
The early precambrian atmosphere consisted primarily of nitrogen and carbon dioxide with almost no oxygen.
<span>Today, the atmosphere contains about 20% oxygen, less carbon dioxide and similar amounts of nitrogen. </span>
<span>Photosynthetic green-leaf plants and trees are largely responsible for the change, converting carbon dioxide to oxygen.</span>
Answer:
<em>YOU</em> use <em>YOUR OWN WORDS</em>
Explanation:
Have a good day! :)
Answer:
Extractive metallurgy
Explanation:
Extractive metallurgy is the practice of removing valuable metals from an ore and refining the extracted raw metals into a purer form.
