With reference to Environmental Studies (EVS) teaching and 'Biogeochemical Cycles', consider the following statements:

1. 1. Under the 'Nitrogen Cycle', fixation of atmospheric nitrogen is carried out by some free-living bacteria (such as Azotobacter) and symbiotic bacteria (such as Rhizobium), which convert it into nitrates, whereas the process of 'Ammonification' produces ammonia from dead organic matter and excretory waste.
2. 2. The 'Phosphorus Cycle' is a sedimentary cycle, which has a very large atmospheric reservoir, because phosphorus mainly evaporates in a gaseous state to form clouds and returns to the oceans through precipitation.
3. 3. In the 'Carbon Cycle', green plants use carbon dioxide from the atmosphere through the process of photosynthesis, and carbon returns to the atmosphere again through biotic and abiotic activities such as respiration, combustion, and decomposition.

Which of the above statement(s) is/are correct?