Question

ayuda porfis es para hoy dy corona

Answer 1

Explicación:

a) no i have never seen a telescope.

b) Zacharias Janssen copied a model and patented it on October 17, 1608.

c) Galileo Galilei made an important contribution, designed and built a telescope.

d) yes, at the end of 1668, Isaac Newton made his first reflector telescope.

la primera pregunta dice "alguna vez has visto un telescopio" entonces la respuesta depende de ti, supongo, si sí has visto uno pones "Yes, I have seen a telescope" y ya =]