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Many countries mined/produced gold. And many countries still do.
The Type of Economic System that is found in many European countries is a Traditional economy
Only 4 remaining countries use the English Imperial system of measurements 1) Liberia 2) Myanmar (formerly known as Burma) 3) United States of America 4) UK* *Though The metric system is in official use within the United Kingdom; however, use of Imperial unit is widespread in many cases." For example it is illegal for metric road signs and illegal to sell draught beer in metric.
Many underdeveloped Arabian countries, 20+ of them.
a lot
Yes, most countries around the world use the metric system as their standard system of measurement. The metric system is a decimal-based system that is widely adopted in many countries for its ease of use and consistency.
Some countries in Africa used the customary legal system. They usually use a combination of a customary system and a civil code.
18 your welcome
No. Unfortunately it is still found in many countries.
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78 Countries signed but the number is still growing