What makes a moon predictable? how does the moon affact the earth?
what causes the movement of the stars?
explain how we see different constellations based on the different seasons
(i can't find the science subject so i just put it to history

the moon effects the way the tides move in the sea

Explanation:

health care plans in the united states having high costs because they are focusing on providing quality programs for different groups of individuals. the quality of the service is based on money flow received from the members. without this investment, couldn't be possible a constant scientific searching to prevent death and illness caused because of low levels of health investigation. currently, the complaints are not about the highest cost, but about the coverage and benefits to access the necessary health services required by the members.  

besides, if a global health system is established the quality levels will fall down because of the standardized of the health. the access to care will increase but the quality will be low because it depends on the money invested.

independent innovation during the abbasid caliphate