By instituting perestroika, Gorbachev attempted to : Gradually introduce privatizations.
He believed that it's the only way he could dismantle the huge communism mindset that the Russian had during that time.
Regions of the earth's waters, crust and atmosphere in which organisms can exist is the Biosphere
Sea level rise/construction of buildings. Both A and B are correct
The Nazca plate, named after the Nazca region of southern Peru, is an oceanic tectonic plate in the eastern Pacific Ocean basin off the west coast of South American. The ongoing subduction, along the Peru- Chile trench, of the Nazca Plate under the South American Playe is largely responsible for the Andean Orogeny
Good luck! Hope this helps hun ;)
More than 2/3 of Central America's agricultural land is used for cattle grazing.