Christian becudgjdhdhsggbxbh
Answer: Coal
Explanation: Natural gas is basically gas that comes from nature so if you use coal it creates natural smoke or gas. Also like fossil fuels create natural gas as well.
Germany attacks USA trading ships
Answer:
Racism, slavery and segregation.
Explanation:
African Americans were enslaved and were seen as less because of the color of their skin which is horrible. They were also segregated, which means that they were seperated from white people because white people thought they were better only because of their skin color (which is wrong).