Who was the soviadict that instituted progressive policies like perestroika and glasnost to the Soviet Union in the 1980?” Gorbachev
Medvedev
Yeltsin
Brezhnev

Air masses are characterized by various properties including temperature humidity air temperature pressure and wind speed . which of the following air masses is associated with low relative humidity and high temperature

An enormous wave generated by an earthquake beneath the seafloor is known as a

The meseta in spain is a a. navigable river b. castle c. coastal plain d.plateau