Answer:
ok
Explanation:
The settlement of the Americas is widely accepted to have begun when Paleolithic hunter-gatherers entered North America from the North Asian Mammoth steppe via the Beringia land bridge, which had formed between northeastern Siberia and western Alaska due to the lowering of sea level during the Last Glacial Maximum.
 
        
                    
             
        
        
        
Answer:
O acid rain destruction as a result of harmful emissions.
Explanation:
Aid rain occurs when sulfur dioxide and carbondioxide gases are released in the atmosphere from industries. These gases mixed with water in the atmosphere produces acids such as sulfuric acid and carbonic acid which destroy animals and plants when falls on the ground in the form of precipitation. Ground and water pollution also occurs due to waste liquids that flows from the industries to the water bodies that greatly affect biodiversity.
 
        
             
        
        
        
Answer:
B
Explanation: I just learned about this
Hope this helps! :)
 
        
             
        
        
        
Answer:
Vladimir Ilich Lenin is the great first leader of the revolution, who led it and consolidate it in the first years of communis power until his death in 1924. He was succeeded by Joseph Stalin, who reached absolute power, developed a strictly centralized command economy, eliminated political rivals within the party, purged the ranks of the party, the army and the government and created a personality cult. 
Explanation:
 
        
             
        
        
        
Inflation and unemployment rose to their peaks by the end of the 1970s. This happened because the fiscal deficit was largely financed by the federal finances. Further, an energy crisis was being faced due to the increase in the price of crude oil. This led to overall inflation and economic instability.