Which one of the following is not the 20th century contribution?
a) Electric train
b) Motorised boats
c) Monorail
d) Supersonic aeroplanes
Please answer this question...
Will mark you as Brainliest and will also thank your answer...
Answers
Answered by
7
Answer:
supersonic aeroplane
Answered by
6
Answer:
b.
Explanation:
Motorised boats...
Similar questions
Physics,
4 months ago
Computer Science,
4 months ago
Physics,
4 months ago
English,
9 months ago
Biology,
1 year ago
Social Sciences,
1 year ago