Question

what was the first artificial satellite to orbit earth?
o apollo 11
o jupiter c
o explorer
o sputnik

Explanation:

Sputnik was the first artificial satellite to orbit Earth, launched by the Soviet Union in 1957. Apollo 11 was a moon - landing mission, Jupiter C was a U.S. rocket, and Explorer was a later U.S. satellite.

Answer:

D. Sputnik