Q: You are presented with the question "Certain types of electricity production can cause acid rain and contribute to:" and the following answer choices: - global cooling - global warming - energy usage - coal mining - deforestation - electrical - Destroy bridges - salinity Now knowing that coal is used to produce electricity by burning in coal-fire power stations and coal-fired power stations can cause acid rain and contribute to global warming, choose the best answer.
A: global warming

Q: You are presented with the question "what gets contracted when fibers get shorter?" and the following answer choices: - nerves - h2o - veins - firm hugs - fur - biceps - the skin - density Now knowing that muscle contraction occurs when muscle fibers get shorter and muscles in the upper arm called biceps are used to flex the arm, choose the best answer.
A: biceps

Q: You are presented with the question "What eventually decomposes?" and the following answer choices: - Carbon - food - bushes - fungus - Fungi - time - metal - space Now knowing that food consists of organic molecules that store energy in their chemical bonds and all organic matter eventually decomposes, choose the best answer.
A: food

Q: You are presented with the question "How is limestone formed?" and the following answer choices: - In sediment - Deposition. - Metamorphic processes. - Igneous processes. - Magma processes. - less water - Water expanding - It expands Now knowing that sedimentary rocks are formed by deposition and limestone is a type of sedimentary rock, choose the best answer.
A: Deposition.