Answer:B
Explanation: Government sources are a direct source originally from them and noone else
Answer: Mao used a violent radical method to eliminate the capitalist system introducing his own system of communism.
Explanation:
In 1966, Mao launched the Cultural revolution by influencing the youths to violently remove the capitalist representatives and Introduced the communism methods after destroying and denouncing the capitalist style and old methods which he felt were based on Old customs, Old culture, Old habits and Old ideas.
With the development of technology, a lot of electronic waste has been created and it's polluting the environment because such devices are commonly thrown away and there's so many of them. This is combined with the rise in CO2 emission which required numerous countries to join the battle against the climate change. The ozone layer was also heavily damaged but it has been improving in recent years.
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.