Answer:
C.)
Explanation:
C.) A coal mine is the only business employing workers in 20 miles in any direction.
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:
Answer:oximatelyo important issue for the Netherlands, as due to its oelevation, approximately two thirds of its ar
