antonio23130iscool antonio23130iscool

16-04-2021
Biology

contestada

Which observational tool helped astronomers Arno Penzias and Robert Wilson discover the existence of the cosmic microwave background (CMB)?
A.
optical telescope
B.
radio telescope
C.
a digital camera
D.
space telescope

Respuesta :

amanphagura7 amanphagura7

30-10-2021

Answer:

Radio Telescope

Explanation:

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