How did transcontinental railroad affect communication A. It made coast to coast communication happen almost instantly. B. It reduced coast to coast communication from a week to a day C. It reduced coast to coast communication from months to weeks D. It made coast to coast communication more complicated and costly

The three impacts mining has on a locale squanders that contaminate streams and seaward, high measures of antagonistic air contamination, the devastation of land around mines. The ecological effect of mining incorporates disintegration, development of sinkholes, loss of biodiversity, and tainting of soil, groundwater and surface water by chemicals from mining forms.