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Question 14 (1 point) Choose whether the phenomenon below is a positive or negative feedback loop. Increase methane from landfills and cow farts Increase greenhouse effect and warming of atmosphere Increase evaporation from bodies of water Increase cloud cover and albedo effect Decrease temperature on Earth due to increase reflection of sunlight akon Oa positive Ob negative Question 15 (1 point) Choose whether the phenomenon below is a positive or negative feedback loop. Humans cut down trees for lumber Deforestation weakens the trees roots Weak tree roots loosen the soil Water flow erodes unstable soil Remaining unstable, low quality, soil can no longer sustain trees. VP ON = a positive Ob negative