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History 6.2
The Earth is Developed by Man
| Question | Answer |
|---|---|
| alloy | a melting of two or more metals to create a new metal |
| arable | capable of being plowed or cultivated |
| corporation | a group of people united to do business together |
| dredge | to scoop up and remove deposits that form in the bottom of a channel |
| ductile | the ability for a metal to be drawn out into fine strands |
| effluent | a mixture of liquid and solid sewage water |
| fault | cracks or breaks in a body of rock with dislocation of the plane |
| interdependent | two or more things that depend on each other |
| irrigate | to supply water to land by artificial means |
| malleable | the ability of a metal to be hammered into thin sheets |
| outflow | that which flows from a river into an ocean, lake, or ither body of water |
| pitch | a heavy thick oil used to seal the hulls of wooden ships |
| refine | to free from impurities and bringinto a fine state |
| sediment | rock formed by the deposit of matter |
| slag | waste matter that is left after ore has been srparated from it |
| sludge | a deposit of thick waste slime that settles on river and lake bottoms |
| smelt | to melt or fuse ore so that the metal contained in it can be separated |
| urban | pertaining to city dwelling |