3) Match these terms with their definitions

explosive E	a tool or machine with a rotating cutting tip or reciprocating hammer or chisel, used for making holes
exploration C	a powerful motor vehicle with large rear wheels, used chiefly on farms for hauling equipment and trailers
investment D	the action of searching an area for natural resources onshore oil and gas exploration
bulldozer B	the action or process of investing money for profit
drills A	able or likely to shatter violently or burst apart an explosive device

4) Fill in the gaps

1 drills_ are used to sink_____2 shafts_, excavate stopes and obtain samples for analysis. ._____3 trams_ are used to transport_____4 miners , minerals and waste. . Huge ______5 trucks_, shovels and cranes are employed in surface mining to move large quantities of overburden and ore.

Mining techniques

Mining techniques can be divided into three common excavation types.(f)

Mining targets are divided into four general categories of materials.(f)

Processing of placer ore material consists of gravity-dependent methods of separation .(t)

Landfill mining finally is sites where landfills are excavated and processed.(t)

Room and pillar mining often leads to retreat mining which is not removing the pillars which support rooms(f)

2) Match heads and tails

Mining techniques can be divided into two(c)	into the earth to reach buried ore deposits.
Processing of placer ore material consists of gravity-dependent methods(e)	vegetation, dirt, and if necessary, layers of bedrock in order to reach buried ore deposits
Surface mining is done by removing (stripping) surface(b)	common excavation types.
Sub-surface mining consists of digging tunnels or shafts(a)	which support rooms, allowing the room to cave in, loosening more ore. .
Room and pillar mining often leads to retreat mining which is removing the pillars(d)	of separation, such as sluice boxes..

3) Match these terms with their definitions

excavation E	a tall vertical structure of stone, wood, or metal, used as a support for a building, or as an ornament or monument
gravels C	a long, narrow part or section forming the handle of a tool or club, the body of a spear or arrow, or similar
disposal D	2a loose aggregation of small water-worn or pounded stones
shaftsB	the action or process of getting rid of something
pillars A	The action of excavating something especially an archaeological site