Science 8 Quarter 3 Pre-Test
Quiz by CMullins
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- Q 1/10Score 0Which one of the following energy sources is not renewable?29windhydropowernatural gasgeothermal
10 questions
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- Q1Which one of the following energy sources is not renewable?windhydropowernatural gasgeothermal30s
- Q2What is carrying capacity?the number of organisms an ecosystem can supportthe ratio of predators to preythe number of organisms in a populationthe number of populations in a specific area30s
- Q3What is deforestation?When people defrost all the trees in a forestWhen people move a forest to a different areaWhen people cut down treesWhen people cut down a whole forest area and and its ecosystems30s
- Q4Which of the following is not an environmental problem with using fertilizers?Rain carries the chemicals into local waterwaysAlgal blooms cause pond life to dieNon-renewable energy sources help decrease the fertilizer problemPlants grow excessively in lakes30s
- Q5Which of the following is a renewable energy source?biomass energysolar energyhydropowerAll of the choices30s
- Q6Which type of heat energy is illustrated by an egg cooking on a hot sidewalk?conductioninsulationradiationconvection30s
- Q7Your hand warms up when holding it near a burning candle. What kind of heat transfer is this?radiationconvectionconductionthermal transfer30s
- Q8What is the law of conservation of energy?Energy cannot be created or destroyedEnergy is always being lostThermal energy does not changeEnergy can be created spontaneously30s
- Q9An object has two opposing forces acting on it : a 10 Newton force pushing it to the right and an 8 Newton force pushing it to the left. What direction will the object go and what is the net force acting on this object?The object will move to the left with a net force of 8 NewtonsThe object will probably remain in the same placeThe object will move to the right with a net force of 2 NewtonsThe object will move to the right with 18 Newtons of net force30s
- Q10What is the biggest problem with burning coal?It gives off nitric acid and causes pollution of waterwaysIt gives off oxygen and causes a greenhouse warming effectIt releases carbonic acid into waterwaysIt releases carbon dioxide into the air and causes a greenhouse warming effect30s
