I think it was Armed conflict
I am going to have to say D, <em>A communist dictatorship was established in Russia after the Revolution, </em><em />is the answer because the US was determined to spread democracy throughout the world and when Russia became communist that put a strain on relationships between the USA and Russia. The US in a round about way boycotted Communist countries.
Hopefully this helps.
Answer:
Environmental Impacts of the Electricity System. ... In general, the environmental effects can include: Emissions of greenhouse gases and other air pollutants, especially when a fuel is burned. Use of water resources to produce steam, provide cooling, and serve other functions. Generally speaking, as the human population grows, our consumption of natural resources increases. More humans consume more freshwater, more land, more clothing, etc. The more people on the planet, the more food you need to feed those humans (more fishing, more farming, more deforestation to make room for agriculture and raising livestock, and so forth).
Explanation:
