Why is pluto now called dwarf planet?
For a planet to be officially called a planet, it needs to be in orbit around the Sun. It needs to have enough gravity to pull itself into a sherical shape and it needs to have "cleared the neighborhood" of its orbit.
Pluto fulfilled two of the conditions but it didn't fulfil the last condition. Any object that didn't fulfil the third condition would be known as a "dwarf planet".
its because they changed the defintion of what a planet is there is now two things that a rok has to have to be a palent I cant remember them thoguh ... pluto only does one of those two things
Its is the smallest planed in our solar system. Scientists are now saying they actually dont believe that pluto is a planet anymore. They believe it is just a chunk of ice
It is smaller than a regular planet. That is by scientific standards.
because it a star now and I dont know why?
you're a chunk of ice