Scenario: A housing development is built in the middle of a large forested area that was previously a reserve. The surrounding area contains several lakes and rivers. Question: Many of the houses have fireplaces that are 15 percent efficient and use 15 kg of wood to heat a room to 20 degrees (C) which is 68 degrees (F). Wanting to reduce their ecological footprint, several of the homeowners are considering switching to wood stoves that are 75 percent efficient. If they do change to using a wood stove, how many kg of wood will they save per use?

"[because of the emancipation proclamation] the condition of things [became] … unsettled, revolutionary, with nothing clearly defined, neither slave nor slaveholder having any rights which they felt bound mutually to respect … slave property in the state of missouri was almost a dead weight to the owner; he could not sell because there were no buyers."—h. c. bruce, a former slave in missouri what does this excerpt suggest about the effects of the emancipation proclamation? a. it also undermined slavery in the border states despite not being in effect there. b. it caused complete disintegration of southern society in the states that seceded. c. it led to slave owners not even trying to stop their slaves from leaving the farms. d. it prevented riots or chaos as both owners and slaves simply ignored each other.