Final answer:
Answer option a.) volcanoes, asteroid impact, changes in Earth's plates does not describe a cause of ongoing global warming. Recent warming is primarily caused by human activities such as energy production and burning fossil fuels.
Step-by-step explanation:
The list that does not describe a cause of global warming is a.) volcanoes, asteroid impact, changes in Earth's plates. While volcanic eruptions can affect the climate by releasing large amounts of particulate matter and sulfur dioxide into the atmosphere, which can have a short-term cooling effect (known as the haze-effect), they are not a significant ongoing contributor to global warming.
Asteroid impacts are extremely rare and not a current factor in climate change, while changes in Earth's plates are geological processes affecting the Earth's surface and do not directly influence the atmospheric conditions that lead to global warming. The primary causes of recent global warming include energy production, burning of fossil fuels, and deforestation, which elevate levels of greenhouse gases in the atmosphere, thereby increasing the greenhouse effect and raising global temperatures.