When molecules have an even charge distribution and no dipole moment then they are nonpolar molecules. CO2 is a linear molecule, so our dipoles are symmetrical; the dipoles are equal in magnitude but point in opposite directions. Generally, when dipole distribution is symmetrical there is no dipole moment.
Degenerative joint disease (medical condition): Osteoarthritis is a form of arthritis typically caused by age-related wear-and-tear. In diagnosis, it ...
What Is Osteoarthritis?: Osteoarthritis, also referred to as degenerative joint disease, DJD, or wear-and-tear arthritis, is the most common form of arthritis and is caused by the breakdown of cartilage in one or more joints. Cartilage acts as a cushion between the bones of joints.