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 removes carbon dioxide from the atmosphere, and cellular respiration puts it back. Photosynthesis releases oxygen into the atmosphere, and cellular respiration uses that oxygen to release energy from food.
A) ATP is not produced during photosynthesis, but only during respiration. B) Photosynthesis is ultimately powered by light energy and respiration by the chemical energy of fuel molecules. C) Photosynthesis consumes CO2; respiration consumes O2. D) Photosynthesis produces O2; respiration produces CO2.