12.
• Invention of the compass and astrolabe
• European dependence on spices from Asia
• Rise of nation-states in Europe
These developments influenced the start of the
A. Crusades
B. Renaissance
C. Reformation
D. Age of Exploration

answer; eliminate parking problems in cities, because a car took up only half as much space as a horse and buggy;

this is called police cynicism. i hope this .

answer; primary memory;

i believe the answer is: true

our brain need to reach a certain level of development   before it could interpret and understood sound with high difficulties. to proof this, we just need to pay attention in musical preference between children and adults. it is far less likely that children would enjoy things such as orchestra or rock band as much as adults due to the difference in this ability.