Physics, asked by aditya83500, 1 year ago

In 20 th century,_______ were invented - 1 ) electric trains 2) supersonic aeroplanes 3) monorail 4) All of these

Answers

Answered by bhaibavpandeypcvu5u

2

dear friends,
in 20th century , _______were invented
all of these .
HOPE IT WILL HELP YOU
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Answered by shashivaranyadav29

0

Answer:

monorail was invented in 20th century

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