Question

formal letter wishing uncle on his 50th birthday​

Answer 1

Explanation:

A clock is a device used to measure, keep, and indicate time. The clock is one of the oldest human inventions, meeting the need to measure intervals of time shorter than the natural units: the day, the lunar month, and the year. ... Water clocks, along with the sundials, are possibly the oldest time-measuring instruments.

Answer 2

Ans  u should at least know about informal and formal letter informal are written to relative