Answer:
- Multiple types exist (the Albers conic, the equidistant conic projection and the Lambert conformal conic projection).
- Pilots use this projection type (the Lambert conformal conic projection is used for aeronautical charts).
- Poles usually serve as central points
hope i helped :)
This seems more like an opinion based question. I believe they can be effective if promoting healthy foods and logical reasons to spend their money on the foods, like good health and teeth. Seems ethical, because someone cares about the health and well being of the teens who will someday be running this world. There are some teens without good role models to impart the meaningfulness of health.