What new energy source gained popularity in the u. s. in the 1980s?
fossil fuel
solar
natural gas
nuclear fusion

When did stockpiles of strategic nuclear weapons begin to dramatically decline in the united states? a. the mid-1960s b. the mid-1970s c. the mid-1980s d. the mid-1990s

Between 1870 and 1916, approximately how many immigrants came to the united states? 10 million 25 million 75 million 125 million

Which french colony used the french revolution as inspiration to gain its own independence? a. brazil b. nicaragua c. haiti d. honduras e. ecuador