The roles and responsibilities of the minority leader are not well-defined. To a large extent, the functions of the minority leader are defined by tradition and custom. A minority leader from 1931 to 1939, Representative Bertrand Snell, R-N.Y., provided this "job description": "He is spokesman for his party and enunciates its policies. He is required to be alert and vigilant in defense of the minority's rights. It is his function and duty to criticize constructively the policies and programs of the majority, and to this end employ parliamentary tactics and give close attention to all proposed legislation."
Are minority leadership roles specified closely?
are not well-defined

Portugal has the largest aquarium in Europe, the Lisbon Oceanarium, and the Portuguese have several other notable organizations focused on science-related exhibits and divulgation, like the state agency Ciência Viva, a programme of the Portuguese Ministry of Science and Technology to the promotion of a scientific and technological culture among the Portuguese population, the Science Museum of the University of Coimbra, the National Museum of Natural History at the University of Lisbon, and the Visionarium.
What does the state agency Ciencia Viva promote?
scientific and technological culture among the Portuguese population

There has been a football tournament at every Summer Olympic Games since 1900, except at the 1932 games in Los Angeles. Before the inception of the World Cup, the Olympics (especially during the 1920s) had the same status as the World Cup. Originally, the event was for amateurs only; however, since the 1984 Summer Olympics, professional players have been permitted, albeit with certain restrictions which prevent countries from fielding their strongest sides. The Olympic men's tournament is played at Under-23 level. In the past the Olympics have allowed a restricted number of over-age players per team. A women's tournament was added in 1996; in contrast to the men's event, full international sides without age restrictions play the women's Olympic tournament.
In what year was a women's tournament added to the Summer Olympics?
1996