New technologies were invented
Many people moved to the cities.
There were fewer farmers
<span>Volcanoes are a destructive force because their eruptions destroy trees and other landmarks, but the magma they produce can be constructive as it dries on land to form mountains. Tectonic plate movement can cause earthquakes, which is another example of a destructive force that breaks apart land.</span>
Answer:
World War I occurred because of a combination of both. Longtime rivalries over colonial divisions, trade and economic influence and domination existed among the great powers of Europe. For example, Germany resented having too few colonies and British superior naval force. They had also created a web of military alliances and defensive obligations - both public and secret - among themselves aimed at others. In the aftermath of duke Ferdinand´s assasination and the rapid succession of events, those factors contributed to dragging them into the war.
Explanation:
Acting responsibly can benefit another person by showing how you should act in public, taking care of yourself, and others. Showing responsibility around your friends can create a healthier environment for everyone and still be able to have fun.