What do you call a situation in which anyone's gain comes at someone else's expense?

What is chemistry and it applications

Which is included in the radio broadcast to capture the listener's attention that the original text of the story is not able to include

The tone of this speech could best be described as expressing a feeling of read the excerpt from president ronald reagan's speech on the night before the 1980 presidential election, i believe we can embark on a new age of reform in this country and an era of national renewal an era that will reorder the relationship between citizen and government, that will make government again responsive to people, that will revitalize the values of family, work, and neighborhood and that will testore our private and independent social fear hope anger pride