The Atlantic Ocean. Its the ocean that connects North and South America to Europe. Most early explorers came from Europe and "discovered" the Americas. The slave trade as well as spice trade used the Atlantic ocean because it's the most direct way from most of Europe.
beacuse it was to much for the power grid at a time
The correct answers are:
1) It sees all members of society as equal.
2) It makes most social services, like healthcare and guarantee of work available to all.
Socialism is a politcal system in which the government has significant control over citizens. This includes determing what resources each family/household receives. Even though it limits incentive for businesses, the goal is to ultimately ensure that all members of society are living somewhat equally. This is accomplished by government control of the means of production and important social services (like healthcare).
Japan has many mountains, thus, the outsiders could not easily enter Japan and Japanese could not leave the country. And, thus the self-isolation was helped by the presence of a mountain terrain. This policy was implemented by Togukawa, who insisted on preventing Japan from foreigners.