gold,silver,coal,and silk
Bituminous coal, or soft coal, is the most common type of coal produced in the United States.
What is a shackled in coal mines
Arch Coal is the USA's second largest coal producer. Arch Coal has operations in central Appalachia (Kentucky, West Virginia and Virginia), the PRB (Wyoming) and the Western Bituminous region (Colorado and Utah). Arch Coal is the USA's largest supplier of low sulphur coal in the eastern USA.
The oldest coal mines in the United States are primarily located in Pennsylvania, with the Anthracite coal region being particularly significant. Coal mining in this area dates back to the late 18th century, around the 1760s. Other early coal mining areas include parts of Virginia and West Virginia, which also have a rich history of coal extraction.
yes
silver
silver and coal
All except coal and silver.
..... burning.
gold, silver, and coal
All the atoms in sodium and silver contain the same number of protons in their nuclei, while this is not true for coal or soap.
coal, petroleum, lead, and silver
Coal, Silver, Turquoise and Uranium.
coal, petroleum, lead, and silver
1 iron, 2 coal ores.
Oil, coal, rice, water, lumber, gold, and silver.