1. Mining tailings are a accumulated debris from rockfalls and rock slides. b a type of a fish that is found in abandoned mines. c the piles of crushed waste rock created as a by-product of mineral processing. d the hindmost part of an animal, especially when prolonged beyond the rest of the body, such as the flexible extension of the backbone in a vertebrate, the feathers at the hind end of a bird, or a terminal appendage in an insect. 2. Mineral resources (not reserves) are a the quanity of a material that con be removed at a profit. b economically feasible for extraction. c total quantity of a material that can be used by humans d the quantity of a material that has been found and is recoverable economically with existing technology. 3. An ore is a the quantity of a material that has been found and is recoverable economically with existing technology. b a rock in which a valuable or useful metal occurs at a concentration sufficiently high to make it economical to mine. c a sedimentary rock usually sandstone containing thick, heavy tar-like hydrocarbon bitumen. d the quantity of a resource material expected to be found in areas in which like deposits are known to exist.
1. Mining tailings are
|
a
|
accumulated debris from rockfalls and rock slides. |
|
b
|
a type of a fish that is found in abandoned mines. |
|
c
|
the piles of crushed waste rock created as a by-product of mineral processing. |
|
d
|
the hindmost part of an animal, especially when prolonged beyond the rest of the body, such as the flexible extension of the backbone in a vertebrate, the feathers at the hind end of a bird, or a terminal appendage in an insect. |
2. Mineral resources (not reserves) are
|
a
|
the quanity of a material that con be removed at a profit. |
|
b
|
economically feasible for extraction. |
|
c
|
total quantity of a material that can be used by humans |
|
d
|
the quantity of a material that has been found and is recoverable economically with existing technology. |
3. An ore is
|
a
|
the quantity of a material that has been found and is recoverable economically with existing technology. |
|
b
|
a rock in which a valuable or useful metal occurs at a concentration sufficiently high to make it economical to mine. |
| c |
a sedimentary rock usually sandstone containing thick, heavy tar-like hydrocarbon bitumen. |
|
d
|
the quantity of a resource material expected to be found in areas in which like deposits are known to exist. |
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