kimmi scratches three rocks in the same way with a fourth rock she found nearby. she makes the following…

kimmi scratches three rocks in the same way with a fourth rock she found nearby. she makes the following notes about her experiment: table with rock 1, rock 2, rock 3, scratch length (cm), scratch thickness. what physical property is she testing? f. luster g. hardness h. cleavage i. streak color geoff is making the following poster for his classroom. florida’s nonrenewable resources image of florida. which resource should he include? a. geothermal energy b. solar energy c. biomass energy d. oil
Answer
Brief Explanations:
- En el primer caso, al arañar las rocas, Kimmi está midiendo su resistencia a ser arañada, que es una medida de dureza. Luster se refiere a la apariencia brillante, cleavage a la tendencia a romper en planos planos y streak color a la coloración del rastro que dejan las rocas al ser frotadas contra un material abrasivo.
- En el segundo caso, geotermia, energía solar y biomasa son recursos renovables, mientras que el petróleo es un recurso no renovable.
Answer:
G. hardness D. oil