This 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?
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Post Test: Earth's Changing Climate

Morei would really appreciate it. his eyes snapped open. a musty smell flooded his senses. the room was lowly lit, curved with smooth light gray walls. the floor was clear black tiled. he stood up, surprised to see no door, but only a trap door on the ceiling that blended in with the walls. the room was unfurnished, which struck him as strange. as you write and revise, ask yourself these questions: 1. do all of the sentences in this paragraph belong here? (unity) 2. are all of the sentences in this paragraph in the right place? (coherence-- a method of development) 3. are all of the sentences in this paragraph smoothly connected together into a whole paragraph? (coherence--use of transitional devices) once you've made certain that your paragraphs are both unified and coherent, edit your work for problems in grammar and mechanics before submitting it to your teacher.

Which statement below accurately describes the carrying capacity of any ecosystem? a. it is not affected by any abiotic or biotic resources. b. it does not affect the species of an ecosystem. c. it is completely dependent upon the food supply. d. it is affected by both abiotic and biotic resources

Countries that are neither core nations nor peripheral nations