Mining

What was the most common sedimentary rock used in the stone age

• obsidian

• flint

• sandstone

• shale

Which of these is an ore

• wood

• opal

• bauxite

• ruby

What is the first stage of mining

• exploration

• rehabilitation

• EIS

• extraction

Which is a hazard of underground mining

• explosions

• radioactive waste

• earthquakes

Coal can be mined by

• underground mining

• in situ mining

• strip mining

Uranium is mined by

• strip mining

• in situ mining

• underground mining

• open cut mining

What metal comes from hematite

• aluminium

• iron

• tin

• nickel

What metal comes from bauxite

• iron

• aluminium

• copper

• tin

What is the first stage of mine site rehabilitation

• clearing

• spreading topsoil

• shaping the waste dumps

• planting seedlings

What is the first 5 cm of dirt called

• scrapings

• mulch

• dirt

• topsoil