Puerto Rico
The Greater Antilles are a group of larger islands in the Caribbean Sea. They include 4 major islands – Cuba, Jamaica, Hispaniola and, the smallest, Puerto Rico.
9000/10=900 people per square mile
Fossil aren't the only cause of global warming. Many human activities are causing global warming. Most come from the combustion of fossil fuels in cars, factories and electricity production.
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Earth is mostly made of rock.
