The invention from the song dynasty that improved clocks was: The clock tower/clepsydra clock
This invention is the first type of clock that utilized the <em>escapement mechanism </em> that is applied by many European countries around 2 centuries later to produce their clocks.
Answer:
Human habitation.
Explanation:
The Bering land bridge is a postulated route of human migration to the Americas from Asia about 20,000 years ago.
Answer:
Medicare
Explanation:
Medicare is the federal health insurance program for: People who are 65 or older. Certain younger people with disabilities.
