They are composed of rock, dust, ice and frozen gases such as carbon monoxide, carbon dioxide, methane, and ammonia. Sometimes called dirty snowballs, recent studies have shown that the ice of a comet is covered by a crust. Comets also contain a variety of organic compounds as well as the gases already mentioned.
Music in three stages: early 1761-1772 middle 1772-1781 late 1781-1791 best known works Mozart composed over 600 works including: 21 stage and opera works, 15 Masses, over 50 symphonies, 25 piano concertos, 12 violin concertos, 27 concert arias, 17 piano sonatas, 26 string quartets, and many other pieces.
Ohio became a state on March 1, 1803, although no formal declaration was madeuntil 1953, when President Dwight Eisenhower officially signed the documents making it a state, retroactive to the original date.Ohio issometimes called the “Mother of Modern Presidents,” having sent seven Ohioans (both natives and residents)to the White House since 1869.
The 1954 Guatemalan coup d’état was a covert operation carried out by the U.S. Central Intelligence Agency (CIA) that deposed the democratically elected Guatemalan President Jacobo Árbenz and ended the Guatemalan Revolution of 1944–1954. Code-named Operation PBSUCCESS, it installed the military dictatorship of Carlos Castillo Armas, the first in a series of U.S.-backed authoritarian rulers in Guatemala.