reserves
Because the Amazon Basin holds economically essential oil deposits.
The Aztecs used tributes from conquered peoples to build Tenochtitlan into an impressive city - Apex
It is either Federal Reserve notes or U.S. Treasury deposits/other deposits
M1 is coin and currency in circulation (M0), traveler's checks, demand deposits, and other checkable deposits.
the countries that have deposits of coal and oil have the advantage to have coal to heat up homes, give a warming fire etc, and for countries that have oil deposits can have more petrol, cooking oil :), oil for lamps etc.
An ore is a portion of a mineral deposit that can be economically extracted at the present time. A mineral deposit is a concentration of naturally occurring material that is potentially economic to extract.
Because the Amazon Basin holds economically essential oil deposits.
secondary enrichment
Ores are deposits of economically valuable minerals, usually - but not necessarily metallic minerals.
Sulphur is generally extracted from underground deposits by drilling three concentric pipes upto the beds of sulphur (700 - 1200 feet deep).
Maine does not have any oil deposits-well, at least no discovered oil deposits.
Now, uranium deposits are not discovered in Yemen.
It's not invented per se, it's extracted from underground deposits. It's a natural resource.
Johannesburg
tazewell
Minerals don't grow in America or anywhere else. Crystals made from minerals can grow. The growth rate though will depend on many conditions. The size of known mineral deposits increases with time and research and decreases as they are mined or extracted.
Crude oil is extracted by drilling wells, but oil sand deposits are strip mined or made to flow into producing wells by in situ techniques which reduce the bitumen's viscosity with steam and/or solvents.