Question

1. 1 century=_________decades

2.The time taken for one to and fro movement is called________

3.The electronic watches use the vibrations of
_______crystal.

4. The SI unit of time is______

5.___________in the car gives the distance travelled in kilometers.

6. The speed of an aircraft is measured in the unit________

7.__________is an early device used to tell the time of the day.


please answer this question with the correct answer please..​

Answer 1

Answer:

1 century is equal to 1p decades

Answer 2

Answer:

hey here is your 2 answers

1.10 decades

4.second