Top 10 causes of death worldwide. Of the 56.4 million deaths worldwide in 2015, more than half (54%) were due to the top 10 causes. Ischaemic heart disease and stroke are the worldâs biggest killers, accounting for a combined 15 million deaths in 2015. These diseases have remained the leading causes of death globally in the last 15 years.
Photosynthesis and respiration are reactions that complement each other in the environment. They are in reality the same reactions but occurring in reverse. While in photosynthesis carbon dioxide and water yield glucose and oxygen, through the respiration process glucose and oxygen yield carbon dioxide and water.
Photosynthesis by plant and photoplankton remove amounts of CO2 in the atmosphere. The same amount is replaced and added back into the atmosphere through cellular respiration of producers and consumers. It is said to result from the reciprocal processes of photosynthesis and celluar respiration because if those two processes together are switched around it causes this new process, the carbon cycle