General Knowledge
Medium
Question
Which of the following invention is oldest ?
A
Clock
✓ Official correct answer
B
Microscope
C
Barometer
D
Cycle
Community credibility
Registered members can vote for the answer they believe is correct today and explain why. If the facts change after an election or news event, suggest a new option so others can vote it up.
A
Clock
No member explanations yet for this option.
B
Microscope
No member explanations yet for this option.
C
Barometer
No member explanations yet for this option.
D
Cycle
No member explanations yet for this option.