Answer:
Soot plays major role in climatic change, but D. carbon dioxide is still leading cause of Earth's changing climate.
Step-by-step explanation:
Soot otherwise black carbon contributes greatly to climate change while carbon dioxide is still the number one contributing factor in terms of warming impact. Carbon dioxide is a greenhouse gas which traps heat leading to increased temperatures and other climate changes.
It is emitted by the burning process of volcanic eruptions, fossil fuels, and other processes. The effect of changing climate is rising sea level from melted glaciers, change landscape due to either a negative or positive effect on crops.