Two important navigational instruments used at prince henry's school were the

The correct answer to this open question is the following.

Two important navigational instruments used at Prince Henry's school were the compass and the astrolabe.

The compass was very helpful in locating the direction and navigate to that place. To calculate the latitude distance from the equator, south, and north, with the North Star reference,  the astrolabe was the correct instrument to use. Other two instruments were used in Prince Henry's navigation school: the cross-staff and the black-staff. The first one was used to identify the altitude above the horizon. The second one, to find the latitude from the horizon.

yes it is different; your family is right : )

explanation:

a fair is where you purchase things while a carnival is where people are on the streets in carnival

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.