I believe the answer would be C, burning fossil fuels. Oil and gas is made up of the remains of microscopic plankton. Over millions of years the remains become the carbon-rich coal, oil and gas we can use as fuel. When fossil fuels are burned they release carbon dioxide into the atmosphere, thus contributes to global warming.
Russia, Ukraine, Belarus, Georgia
hope this helps
Naturalization is the process of becoming a citizen of a country where you don't come from. After you naturalize, you get the rights and responsibilities of being that country's citizen.
Answer:
it gave voting rights to more people. it gave the people more power over who was being elected