A sharp, stinging odor would most likely be a defense mechanism for a plant.
The number of electrons in the outermost shell determines essentially the type of chemical reactions that an atom participates in it is because these electrons are involved in chemical reactions as they can be donated, shared and thus rearranged by forming covalent bonds to produce new substances
You do know that you have to give a topic on what this project is about, also doing this quick is never gonna happen. Science projects take TIME AND EFFORT. So, with that being said, sorry for wasting your time.
<span>Hormones released during exercise that can cause a person to get a "physical high" are known as endorphins. These hormones are released by the brain's pituitary gland during any period that significant stress is felt. It can be produced during exercise or tiring activities, stress, or pain. They are released so they can help relieve the feelings of stress.</span>