Australian Mining

What are minerals?

• Naturally occurring chemical substances that make up rocks

• Metals or other valuable materials found in rocks

• Pure elements found in rocks

• Compounds made up of different elements

What is an ore material?

• A metal found as a pure element

• A compound made up of different elements

• A naturally occurring chemical substance

• A material containing a metal or some other valuable material

What is a native metal?

• A metal found as a pure element

• A compound made up of different elements

• A naturally occurring chemical substance

• A material containing a metal or some other valuable material

Which country is among the world's largest exporters of iron ore, lead, zinc, gold, uranium, and aluminium?

• Australia

• United States

• China

• Russia

Which of the following minerals is Australia an important exporter of?

• Titanium, nickel, copper, tin, and silver

• Iron ore, lead, zinc, gold, uranium, and aluminium

• Gold, uranium, and aluminium

• Iron ore, lead, and zinc

Which type of mining would be used for a mineral able to be dissolved?

• Open cut mining

• Underground mining

• Dredging

• Leach mining

When do mines open?

• When there is more demand

• When there is less demand

• When they are profitable

• When they are unprofitable

Which type of mining would be used for salt?

• Open cut mining

• Underground mining

• Dredging

• Leach mining

Which type of mining would be used for gold deposits found in narrow veins underground?

• Dredging

• Open cut mining

• Underground mining

• Leach mining

How are minerals formed in sedimentary rocks?

• By crystallization of solutions containing minerals

• By cooling of magma

• By melting of existing rocks

• By deformation of rocks