Answer:
In the UK, high pollution levels are sometimes caused by dust blown from the Sahara desert.
Other sources of air pollution include: sources of smoke, including cigarette smoke, burning fuel in houses for heating or cooking, emissions from power generation, industry and farming.
The UK government has plans to improve pollution due to traffic, and is banning the sale of new fossil fuel cars by 2040, and is phasing out the use of coal in its electrical power generation.
 
        
             
        
        
        
Answer: The entry of the United States was the turning point of the war, because it made the eventual defeat of Germany possible. It had been foreseen in 1916 that if the United States went to war, the Allies' military effort against Germany would be upheld by U.S. supplies and by enormous extensions of credit.
 
        
                    
             
        
        
        
Answer:
it was a labor protest
Explanation:
The Haymarket Riot (also known as the “Haymarket Incident” and “Haymarket Affair”) occurred on May 4, 1886, when a labor protest rally near Chicago's Haymarket Square turned into a riot after someone threw a bomb at police. At least eight people died as a result of the violence that day.
 
        
             
        
        
        
Hi 
Einstein created theories which proved that things like light, gravity, and matter were connected with each other.
I hope that's help !