Respuesta :
A. Human activity
C. Natural fluctuations
Global Warming
Global warming usually refers to human-induced warming of the Earth system.
Causes of Global Warming:
- Greenhouse Gases,
- Variations in the Sun's Intensity,
- Industrial Activity,
- Agricultural Activity,
- Deforestation,
- Natural fluctuations.
Thus, the possible causes of global warming are options A and C.
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