The graph gives information on greenhouse gas emissions from industries. Which questions would help clarify the evidence from this graph

The correct answers are A) what caused a drop in GHG emissions in 2009? And E) which type of industries were included in the study?

The graph gives information about Green House Gase emissions from industries. The questions that would help clarify the evidence from this graph are what caused a drop in GHG emissions in 2009? and which type of industries were included in the study?

If we want to clarify the evidence of the data showed in the graph, we need to ask two questions: what caused a drop in GHG emissions in 2009?, and which type of industries were included in the study?

This way we could understand what happened in 2009 that made the emissions dropped so drasctically and notoriously, in order to take this into consideration for the future. And the other interesting question should be the kind of industries that were researched. This way we can know what kind of industries are the ones that emit the most GHG emissions, or if we are not taking in consideration other important pollutant industries that should be included in the study to make it more accurate.