Nitrates are used by plants to make amino acids and proteins. Most of the phosphorus cycle takes place at ground level. Phosphate is released by the slow breakdown of rocks. What two main biological processes are responsible for the cycling of oxygen?
I believe it was glaciers but im not certain...
Both soil and the ocean contain charcoal microbes, assigned to the Archaeologist, that convert ammonia to nitrites. They are more abundant than the nitrifying bacteria<span> and may turn out to </span>play<span> an important </span>role<span> in the </span>nitrogen cycle<span>.</span>
The three type of tectonic plate boundaries are:
Convergent- two plates are moving towards each-other. Forms volcanoes, mountains and can cause earthquakes too.
Divergent - two plates are moving away from eachother. The space that is created between them is filled with lava from the mantle which cools to become part of the crust. These areas are hotspots.
Transform - two plates are moving against eachother (one down, one up etc.) They cause minor earthquakes.
