1.identify the 2 major reservoirs of carbon dioxide into the atmosphere

2.what are the forms in which carbonis found n the oceans

Since this is not my area of expertise, I searched Google under the key words "carbon dioxide reservoirs atmosphere" to get these possible sources:

http://www.planetguide.net/cool/carboncycle_activity.html
(Broken Link Removed)
http://en.wikipedia.org/wiki/Carbon_cycle
http://www.sprl.umich.edu/SPRL/Report/1995/31_AtmosEvolution.html
http://www.safeclimate.net/business/understanding/carboncycle.php

I hope this helps. Thanks for asking.

1. The two major reservoirs of carbon dioxide into the atmosphere are:

- The atmosphere itself: The atmosphere naturally contains a certain amount of carbon dioxide, which is released through natural processes such as respiration, volcanic eruptions, and decay of organic matter. However, human activities such as burning fossil fuels and deforestation have significantly increased the amount of carbon dioxide in the atmosphere.

- The oceans: The oceans act as a carbon sink, absorbing large amounts of carbon dioxide from the atmosphere. This absorption process is known as oceanic carbon uptake. The carbon dioxide dissolved in the surface waters of the oceans can be exchanged with the atmosphere, forming a dynamic balance between the two. Additionally, carbon dioxide can be transported to deeper layers of the oceans through mixing and ocean currents, where it can be stored for long periods of time.

2. Carbon in the oceans exists in various forms, including:

- Dissolved inorganic carbon (DIC): This is the most abundant form of carbon in the oceans. It includes carbon dioxide (CO2) gas, carbonic acid (H2CO3), bicarbonate ions (HCO3-), and carbonate ions (CO32-). These forms of DIC can undergo chemical reactions in the ocean water, depending on factors such as temperature, pressure, and pH.

- Dissolved organic carbon (DOC): This is carbon that is bound to organic molecules, such as dissolved sugars, amino acids, and other organic compounds. DOC can be derived from various sources, including decaying organic matter, phytoplankton, and other marine organisms. It plays an important role in the oceanic carbon cycle, as it can be consumed by heterotrophic bacteria and other organisms, releasing carbon dioxide back into the water.

- Particulate organic carbon (POC): This refers to carbon that is associated with suspended particles, such as detritus, planktonic organisms, and other organic matter. POC can be transported by ocean currents and eventually sinks to the seafloor, where it can contribute to the formation of sedimentary rocks and long-term carbon storage.

To get more detailed information or to verify these sources, you can visit the websites mentioned above or conduct your own search using the keywords "carbon dioxide reservoirs atmosphere" and "forms of carbon in the oceans".