what are comets??????????..??
Answers
Comets are basically dusty snowballs which orbit the Sun. They are made of ices, such as water, carbon dioxide, ammonia and methane, mixed with dust.
Comets are basically dusty snowballs which orbit the Sun. 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.
Once a comet has outgassed all the available volatile, its coma and tail will disappear and the remaining inert nucleus will take on the appearance of a low albedo asteroid. After 500 times or so a comet passes near the Sun, most of its ice and gas is lost, leaving a rocky object.