Answer:
Movement in the mantle caused by variations in heat from the core, cause the plates to shift, which can cause earthquakes and volcanic eruptions.
Plates at our planet’s surface move because of the intense heat in the Earth’s core that causes molten rock in the mantle layer to move. It moves in a pattern called a convection cell that forms when warm material rises, cools, and eventually sink down. As the cooled material sinks down, it is warmed and rises again.
Answer:
Difference between Representative Democracy
Explanation:
Representative Democracy is a government system, in which a representative group of people elected (chosen) by general public - are in power.
a) People elect small group in power, b) Those few <u>public elected</u> people directly exercise power, c) Government positions are open to many people, d) Anyone can run for office - whosoever chosen by public comes in power : are characteristics of representative democracy, not of oligarchy
Oligarchy is a type of government, in which a small group of powerful people (powerful due to wealth, education, religion, military link etc) - are in power & the power tends to stay with them.
Oligarchy is run by a small group of powerful people, <u>not elected</u> by general public. Only those few powerful people exercise direct or indirect power - as they are not public representatives. Government positions are not open to many people, anyone cant run office, as the power tends to stay accumulated in that powerful group's hands.
Answer:
Because Mexico–U.S. migration represents the largest sustained migratory flow between two nations worldwide, much of the theoretical and empirical work on migration in the Americas has focused on this single case. Yet in the past few decades, migration has emerged as a critical issue across all nations in Latin America and the Caribbean. Indeed, over the past fifteen years, this region has changed its historical position from a net migrant-receiving region to one of the leading sending areas of the world.
The Ural and Caucasus mountain Ranges
