When a player records a hit in a baseball, there are four kinds of outcomes possible: a single, double, triple and home run. When a player is able to do all four kinds of hits in a single game, ...

The carbon cycle is the biogeochemical cycle focused on carbon and how it is sequestered in and moves between different reservoirs in the Earth system. Carbonate associated phosphate indicates that ...

Carbonate associated phosphate indicates that Ediacaran oceans had more P in shallow waters but less in the deep sea, opposite to modern. A distal P shortage may have aided deep-water oxygenation and ...