Answer:
No Evidence That Earth is Flat coz it is always spherical
This is very complicated Don't know but I hope you find out
<span>From what i remember in my test,
It was first unpopular because slavery was a economic contributor during that time i would have to say it was actually the most important thing at that time. Hope this helps!</span>
Answer: Quartz clocks and quartz watches are timepieces that use an electronic oscillator regulated by a quartz crystal to keep time. This crystal oscillator creates a signal with very precise frequency, so that quartz clocks and watches are at least an order of magnitude more accurate than mechanical clocks.
Explanation:
