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Natural. It is a sedimentary rock composed of, mainly, sand (!) derived from the weathering and erosion of other, originally mainly igneous, rocks.
Zinc is a mineral in its natural state as sphalerite (ZnS), which is a compound of Zinc and Sulphur. It is normally found along with other igneous type minerals such as copper, lead and iron.
No. Mining is an activity carried out by people and therefore not natural. It is not necessarily a disaster either if it is done properly.
Either. However the natural form is rare on the surface of the earth, but higher levels are in some igneous rocks, some lavas, and all meteorites.
?? Sand IS natural! It's the weathering product of hard, principally igneous, rocks or of sandstone breaking down into its constituent materials; and is primarily grains of silica (quartz).
The sediments carried and deposited somewhere else build new things. Also natural arches are pretty landforms caused by wind erosion.
Obsidian is an igneous rock that technically is not composed of minerals. It is a natural glass.
Clastic sedimentary rocks are formed from particles of pre-existing sedimentary, metamorphic, or igneous rock that are deposited, compacted, and cemented together by natural processes.Clastic sedimentary rock is made of fragments of rocks cemented together by a mineral such as calcite or quartz.
it is a cave formation deposited by dripping or flowing water . it is NOT a natural bridge
Pipelines carry oil and natural gas
Natural. It is a sedimentary rock composed of, mainly, sand (!) derived from the weathering and erosion of other, originally mainly igneous, rocks.
Yes, Dutch cocoa is carried by Winco Foods and available in the bulk section.
Zinc is a mineral in its natural state as sphalerite (ZnS), which is a compound of Zinc and Sulphur. It is normally found along with other igneous type minerals such as copper, lead and iron.
Type of decontamination that is carried out by a unit to reduce contamination equal to natural background or to the lowest level possible.
No. Mining is an activity carried out by people and therefore not natural. It is not necessarily a disaster either if it is done properly.
All living things eventually die.
Either. However the natural form is rare on the surface of the earth, but higher levels are in some igneous rocks, some lavas, and all meteorites.