2011 â The first of its kind in North America, EdgeWalk is the worldâs highest full circle hands-free walk on a 5 ft (1.5 m) wide ledge encircling the top of the CN Towerâs main pod, 356m, (1168 ft, 116 stories) above the ground.
Why does cellular respiration add carbon dioxide to the atmosphere but photosynthesis does not? During photosynthesis, carbon dioxide and water are used to produce sugars and oxygen. During respiration, the sugar glucose and oxygen and used to produce carbon dioxide and â¦water.  Resource: Science Explorer. Prentice Hall Life Science Text Book. No copyright intended.
Report Abuse. respiration holds the relationship During inhalation:The diaphragm becomes flat,the intercostal muscles move upwards and outwards,the lungs is inflamed and pressure decreases,as a result air rushes in to equalize the pressure.hen it contracts, it creates a negative pressure in the upper chest cavity, which expands the lungs, drawing air in. When the diaphram relaxes, you exhale normally. There are two kinds of intercostal muscles; external and internal. Both are accessory muscles.