According to the passage, when a piece of space junk falls back to Earth is most
dependent upon the--
O size of the object
O length of time it has been in orbit
O speed at which it was launched
O altitude of the object's orbit

Respuesta :

Answer:

Explanation:

the United States Space Surveillance Network was tracking more than 14,000 pieces of space debris larger than 10 cm (4 inches) across. It is estimated that there are about 200,000 pieces between 1 and 10 cm (0.4 and 4 inches) across and that there could be millions of pieces smaller than 1 cm.