Diesel trucks do not have any spark plugs. A diesel truck has an internal combustion engine, as does a  petrol car. The method of igniting the fuel is different. 
For the purposes of this discussion, an internal combustion engine is an engine where the fuel is ignited and burned inside the cylinders of the engine. This is where the power is produced. 
The diesel engine works in the following way:
1. Air is let into the cylinder and the piston compresses the air. 2. Once the air is compressed, fuel is sprayed into the cylinder. The amount of fuel sprayed onto the cylinder varies. 3. The compressed air is so hot that the fuel ignites and explodes without a spark plug. 3. The controlled explosion pushes the piston back out of the cylinder.4. Enough power is produced to drive the vehicle forward. <span>
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I think the first quote best develops the central idea that African Americans have been intentionally block from voting in election.
"Every device of which human ingenuity is capable, has been used to deny this right."
Meaning that every device humans have have been used to deny the right to vote in elections.
 
        
                    
             
        
        
        
It killed more than 2000 people. Bombs were thrown every were. They were killing people who wasn't even a part of the war.
        
                    
             
        
        
        
I think the answer would be replace, i'm taking a test with Penn Foster with the same question
        
             
        
        
        
Adam Clayton Powell Jr. was an
activist that left his mark in Congress for being a crusader of the civil
rights of African Americans. He had his own confrontational approach towards
racial discrimination that was controversial to most men in Congress. He was
outspoken and regarded as an irritant by many of his colleagues because of his
persuasive attitude.
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