This pie chart presents data on sources of methane emissions in the United States between 1990 and 2013. Which questions would help clarify the evidence in the chart? (Note: Enteric fermentation is a way that some animals digest food.)

Answer:
the options are 1 and 2 from what someone put in the comments to this question.
What are other sources of methane gas emissions that are responsible for 8% of emissions? is the question that would help clarify the pie chart data.
Methane is a greenhouse gas that gets released from a variety of sources like naturally from petrol and natural gases, coal mining, enteric fermentation, and by human activities like landfills.
From the pie chart data about the methane emission from the various sources can be interpreted, as the percentage of their emissions are given. All the sources of the methane gas emission are given and only the other sources are unknown that can be asked as the question.
Therefore, what are other sources of methane gas emissions that are responsible for 8% of emissions? can be asked for clarification.
Learn more about methane gas emission here:
https://brainly.com/question/2954871