Pressure sores can occur, for example, when you sit or lie in one position too long. Shearing is also a kind of pressure injury. It happens when the skin moves one way and the bone underneath it moves another way.
Quick Answer. Greer's goo is a type of barrier cream used in the treatment of intertrigo. Its composition is a mixture containing nystatin powder, hydrocortisone powder and zinc oxide paste, states Medscape. Intertrigo, which is a skin rash, manifests as diaper rash in babies.
Matter is that substance that can occupies space and has mass. For example gas,liquid etc. are mass like my friends said. But photons which are fundamental particles of light occupies space but dont have mass,meaning they are not matter. Hope this helps.