a beach ball is a kind of container & if a flexible container is pushed on then that container will change shape & a beach ball is flexible -> if a coast point is pushed on, then the size of the coast point will static if a beach ball is pushed on, then the shape of the beach ball will change  if a beach ball is pushed on, then the shape of the beach ball will change & the beach ball is pushed on the middle -> the size of the coast point will static the shape of the beach ball will change  matter in the gas phase has variable shape & air is a kind of matter & land is in oil standard -> air is a matter that has variable shape air is a matter that has variable shape  air is a matter that has variable shape & matter with variable volume and shape takes the shape and size of its entire container -> land highlands the size of its acacia air takes the shape of its container  air takes the shape of its container & a beach ball is a kind of container & the coast point is filled with land -> air takes the shape of the beach ball air takes the shape of the beach ball  the size of the coast point will static & air takes the shape of the beach ball -> the shape of the air in the beach ball will change with the shape of the beach ball