Republic and democrat right? the other ones like community and national war prevention ones came later I think
The dominant social system in medieval Europe, in which the nobility held lands from the Crown in exchange for military service, and vassals were in turn tenants of the nobles, while the peasants (villeins or serfs) were obliged to live on their lord's land and give him homage, labor, and a share of the produce, notionally in exchange for military protection.-definition of feudalism
The correct answer is <span>b. an individual oxygen atom combines with an oxygen molecule
An oxygen molecule consists of two oxygen atoms and the molecule itself is the thing we breathe and need for survival. When the molecule is connected to another individual oxygen atom you get ozone. Ozone has the formula of O3 because of this. It is found around the planet and gives us protection from things such as ultraviolet light or similar things.</span>
Answer:
Tech helped lead changes in transportation, communication, television, man walking on moon, space programs, printing press allowed the masses to receive news, read books, and attend school, and cameras for easier to catch criminals with pictures identification.
