Answer:
mountain chains, earthquakes, volcanoes.
Earth is composed of four main layers, starting with an inner core at the planet's center, enveloped by the outer core, mantle, and crust. The inner core is a solid sphere made of iron and nickel metals about 759 miles (1,221 kilometers) in radius.
source: nasa
An increase in human population leads to environmental issues such as pollution. This is because when there is an increase in population there would be an increase food resources therefore would have more pollution as well as higher gas emissions.
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Answer: The Andes mountain range
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The Andes mountain range is located in the <u>western part of South America</u>, contouring the Pacific Ocean coast and part of the Caribbean Sea.
The Andes is the longest mountain range on Earth with the record of having the highest volcanoes on the planet.
Its surface is so extensive that it covers seven countries: Colombia, Venezuela, Ecuador, Peru (running north to south in the middle of its territory), Bolivia, Argentina and Chile.