Автор статьи
Валерия
Эксперт по сдаче вступительных испытаний в ВУЗах
- aqueous, 2. scientific, 3. mainly, 4. subsurface, 5. precipitate, 6. geophysical, 7. volcanism, 8. watery.
- Technological development throughout the 19th and 20th centuries helped both to improve the safety of colliers and the productive capacity of collieries they worked.
- Either of methods is appropriate in this case.
- For sulfide ores, both secondary (supergene) and primary (unweathered), froth flotation is used to physically separate ore from gangue.
- You can use either underground mining or surface mining to extract coal.
- Since the dissolution of the Soviet Union, Russia (to have) struggled to maintain its ailing mineral industry.
- Deep-vein miners (to have) to deal with a number of difficult problems, including drainage, ventilation, lighting, and safety.
- The Siberian-Urals Aluminium Company (to have) begun construction of Sredne-Timan bauxite field.
- He told that he (to have) studied mining in Germany.
- Both extrusive and intrusive igneous rocks are derived from magmas.
- The folded and broken layers indicate the rock has undergone deformation during mountain-building.
- Gold has been discovered on every continent on earth.
- The reserve base are being diminished rapidly in the country.
- People are always attracted towards gold mining thinking about lots of money.
- As with other commodities in Russia, lead and zinc are being rapidly depleted.
- The largest gold mine is present in Papua, Indonesia.
- The Emerald is one of the most well known and most attractive gemstone available.
- Seismic data are to be used to determine in which direction rocks first moved along a fault during an earthquake.
- Nowadays geologists are unable to explain why glaciers form, advance, and retreat.
- An analysis of push-pull data can generate two possible fault orientations that fit the first-motion data.
- Glaciers can move more than 15 meters a day.
- You should study the question before the experiment.
- As a submarine lava flow cools, blobs of lava may break through the exterior and harden immediately in the cold water.
- He might have helped us to take the measurements.
- The students will be allowed to choose the topic for their further research.
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