There are three primary ways that naturally occurring radioactive isotopes decay: 1  Alpha particle emission. 2  Beta particle emission. 3  Gamma radiation emission.
President condemns Ankara attacks. The current migration crisis is a problem of the entire EU and not of a particular country, Polish President Andrzej Duda said after the end of the Visegrad Group two-day summit in Balatonfuered, Hungary, on Friday.
It is a unitary state with 16 administrative subdivisions and Warsaw as its capital city. Poland is a representative democracy, with the country ranking among the most peaceful countries in the world. The president of Poland heads the state with the government centered on the Cabinet. The parliament is made up of both the lower (Sejm) and the upper (Senate) houses.