About Rat hole mining is a method of extracting coal from narrow, horizontal seams. This practice is prevalent in Meghalaya. The term “rat hole” refers to the narrow pits dug into the ground, typically just large enough for one …
About Plankton crash A plankton crash is when a dramatic bloom of plankton in a pond is replaced by very few viable plankton. This can be caused by a lack of nutrients or CO2 Dead plankton can create large amounts …