Physics, asked by Hunar1515, 1 month ago

Which one of the following is not a 20th century contribution?

a) Electric trains
b) Motoricsed boats
c) Monorail
d) Supersonic aeroplanes

Answers

Answered by Ankita0406
1

Answer:

Motorised Boats

Explanation:

your answers are attached above.

please mark it as the brainliest and like my answers.

don't worry the answers are 1000000000000000000% correct

hope it helps :)

Answered by varunraja2012
1

Answer:

monorail did not be invented in the 20th century

Similar questions