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What are some causes of global warming?

Answer 1

Human activity in different fields like industry, and agriculture. More CO2 from the factories and more methane from the farms. In addition to other gases these two contribute to the formation of the green house effect which leads to global warming.

Green house effect is summarized in the following image:

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Answer 2

Roman Acosta

Greenhouse gas emissions from human activities, including burning fossil fuels, deforestation, and industrial processes, contribute to global warming. Other factors include agricultural practices, waste management, and natural sources like volcanic eruptions.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.