Vitamins A, D, E, and K are fat-soluble. B vitamins and vitamin C, on the other hand, are water-soluble. Vitamin A. Vitamin A is found in many yellow-colored fruits and vegetables. Good sources include: sweet potatoes; winter squash; carrots; dark leafy-green vegetables; fatty animal tissue, such as liver or fish
A negative externality (also called external cost or external diseconomy) is an economic activity that imposes a negative effect on an unrelated third party. It can arise either during the production or the consumption of a good or service.
Air pollution from motor vehicles is an example of a negative externality. The costs of the air pollution for the rest of society is not compensated for by either the producers or users of motorized transport.or example, manufacturing activities that cause air pollution impose health and clean-up costs on the whole society, whereas the neighbors of an individual who chooses to fire-proof his home may benefit from a reduced risk of a fire spreading to their own houses.