surface mining sentence - surface mining sentence in Hindi (21-30)

	21.	By 1912, surface mining was conducted with steam shovels designed for coal mining.
	22.	From 1928 until the 1960s it was planted on surface mine spoils in Indiana.
	23.	Surface mining disrupts virtually all aesthetic elements of the landscape.
	24.	Sediment contamination of surface water is common with surface mining.
	25.	MinePro is a primary sales channel for surface mining equipment.
	26.	Limited deep mining resumed under contractors and contract surface mining continued into the 1990s.
	27.	Globally, about 40 percent of coal production involves surface mining.
	28.	Downstream from the gorges, a large surface mine producing cement from a limestone deposit.
	29.	A representative example of the period are Puzzlewood's surface mines.
	30.	About two-thirds of Appalachia's coal is produced by surface mining.

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surface mining in a sentence