Question

select all the correct answers. the graph gives information on greenhouse gas (ghg) emissions from generating electricity in the united states. which questions would help clarify this evidence? why does producing electricity cause greenhouse gas emissions? why do power plants release hydrofluorocarbons and other f - gases? why did greenhouse gas emissions decrease between 2007 and 2009? are greenhouse gases released because of food digestion in cattle? where is the data on greenhouse gas emissions from volcanic eruptions?

Explanation:

The graph is about greenhouse - gas emissions from generating electricity in the US. Questions related to this specific source of emissions will help clarify the evidence. The first three questions are about electricity - generation related emissions. The fourth question is about emissions from cattle and the fifth is about volcanic emissions, which are not related to electricity - generation.

Answer:

• Why does producing electricity cause greenhouse gas emissions?
• Why do power plants release hydrofluorocarbons and other F - gases?
• Why did greenhouse gas emissions decrease between 2007 and 2009?