A nurse´s best response in a post traumatic stress disorder case would be to be very patient, kind and understandable because it is a slow process where family members should get involved, that ptsd could take months of therapies and medication, that will depend on the origin of the trauma, the event that caused that emotional disorder, today considered a disease and like one, treated and medicated.
Solubility is very important for industrial reactions, like producing fertilizers, toothpaste, paint, dye, and basically anything else that requires mixing chemicals
It's around us every day whenever we mix things
Making hot chocolate or lemonade=using solubility
adding some laundry powder to the laundry=solubility
etc.
Designing Combustion Engines D I think
An observer on the moon would only see the sun partially covered