The need for energy, gained by respiration and photosynthesis, is the driving force of the oxygen cycle. Please select the best
2 answers:
Answer: True
Explanation: Oxygen cycle is the process by which oxygen is released into the atmosphere by photosynthesis and is used by aerobic organisms while the carbon dioxide is released as a by product of respiration. This carbon dioxide is used in photosynthesis for production of glucose.
Hence, for oxygen to remain in the atmosphere, it has to circulate through various forms of nature and this circulation of oxygen is called as oxygen cycle.
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Answer:
Chlorine (Cl)
Explanation:
The equation would be:
→
This is because no atom is lost in a reaction. Chlorine would be the missing chemical as it is on the other side of the equation and needs to be accounted for on the products side.