From 1789, many chemists and physicists from all the countries.
Blacksmiths are the people that made weapons. They worked with iron. Viking blacksmiths even worked with bundles of iron, using them together to create a one of a kind piece of weaponry. These swords were most often held with one hand, making the other hand free to hold a wooden shield.
Petroleum, agriculture, chemicals, minerals and ores.
Arable land and metal ores.
Região Autónoma dos Açores is a Portuguese equivalent of 'Azores Autonomous Region'.
Ores
ores near earth's surface are removed by underground mining as long as they don't cause the mine to collapse as they drill.
They open the bag of winds, blowing them away from home.
The process for the separation of radium and polonium from ores is long and difficult; many chemicals were used.
A canoe is a boat. It is useually manned by two people with ores rowing on a lake, river, or calm ocean.
Those ores which contain metal in the form of oxides are called as oxide ores.
oil, methane gas, coal, wood, mercury, iron ores, copper ores, zinc ores, lead ores
Nickel has a fairly long history and has been used by many ancient cultures. In what is now Syria, nickel was a component of many bronze structures. These are believed to have been made in about 20BC. Some manuscripts from Ancient China suggest that 'white copper' (also called cupronickel or coppernickel) was used between 1700BC and 1300BC. However, silver ores are easily mistaken for nickel ores so some historians have suggested that the ancient Chinese probably used silver ores. So nickel has long been known to many civilizations, even if they didn't know exactly what nickel was.
Ores Are Many Useful Minerals . We Use Them Today To Build Buildings & Ships . Sometimes You Can Find Them In Screws , Nails , ETC.- Seondra
Extraction of metals from its ores and formation of ores. Studying their properties, their alloys,refining of ores.
There are many different ores with different colours (colors).
Ores.