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1
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process of injecting liquid at high pressure into rocks to extract oil
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3
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produce a hole or to bore with a drill
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4
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the act of finding or learning something for the first time
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6
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achievability
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7
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underground bed or layer of the earth that yields water
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8
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dread, uneasiness
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9
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the action of taking out something
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10
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make impure by exposure to or addition of polluting
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14
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surroundings or conditions in which things live
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15
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soft sedimentary rock that forms from mud or clay
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2
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to contain or include
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5
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basic structural foundations, like roads and bridges
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9
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a commodity or service sold abroad
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11
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nearness
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12
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to caution, advise or cousel against something
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13
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pertaining to monetary expenditures
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