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read the article titled "comparative advantage." explain what comparative advantage is and how it relates to opportunity cost. how do these principles explain why americans have exported customer service operations to india?

A comparative advantage happens when a country has irregular shifts in production that target different products. For instance, when considering America and India’s production services, both countries are capable of producing tools for customer services and precision.

But America is ahead in terms of technology and flow of processing the precision tools. This, therefore, implies that the American wants to stop the production of tools to produce customer service it will need to sacrifice its production tools capacity. However, if India lacks the modern technology, it will relinquish its tolls and use them for customer service.

it is very hard for the climatologists to precisely predict how will the global temperatures be changing so there's lots of models, some of which differ significantly, this is due to multiple factors, and probably the most important is the human activity.

humans have been a key factor in climate change around the globe since the start of the industrial revolution, and in the past few decades the consequences are becoming more obvious. there's lots of emission of pollutants in the atmosphere as well as changing the environment on the surface itself, so it's really hard to predict how will that go in the future because there's some countries that are reducing the damage and are going towards green energy, while others are stubbornly continuing with pollution and damages to the environment.