select the correct answer.\nwho built the worlds first liquid - fueled rocket?\na. robert goddard\nb…

select the correct answer.\nwho built the worlds first liquid - fueled rocket?\na. robert goddard\nb. konstantin tsiolkovsky\nc. hermann oberth\nd. neil armstrong

select the correct answer.\nwho built the worlds first liquid - fueled rocket?\na. robert goddard\nb. konstantin tsiolkovsky\nc. hermann oberth\nd. neil armstrong

Answer

Brief Explanations:

Robert Goddard built the world's first liquid - fueled rocket in 1926. Konstantin Tsiolkovsky made theoretical contributions to rocketry. Hermann Oberth was also a key figure in the development of rocket technology but not the builder of the first liquid - fueled rocket. Neil Armstrong is famous for being the first man to walk on the moon.

Answer:

A. Robert Goddard