Two atoms of oxygen element are represented as "20". The two oxygen atoms are unreactive state and are unstable readily reacts and form molecules.
O₂ reprersents one molecule oxygen. When the two oxygen atoms reacts with each other forms one molecule of Oxygen. After the formation of Oxygen molecule, it (oxygen) has got stability.
Answer:
Receptor
Explanation:
The receptor is the sensing component that monitors and responds to changes in the environment, either external or internal. Receptors include thermoreceptors, and mechanoreceptors.
The mitochondria is in the brain used as a powerhouse. Basically without it our brain would not be able to function
Air polution can cause things such as asthma, lung cancer, and many other things. air polution could also cause headaches, dizziness, nausea, and more.