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QR Challenge: Intro Biogeochemical Cycles and Human Impact

QuestionAnswer
How can a renewable resource become a non-renewable resource?If it is used carelessly.
What are two ways that water enters the atmosphere?evaporation and transpiration
What are the two main processes involved in the Carbon and Oxygen Cycle?photosynthesis and cellular respiration
What is the build-up of pollutants in the fatty tissues of aquatic organisms?biomagnification
What happens between evaporation and precipitation?condensation
What are two human activities that add carbon dioxide to the atmosphere?combustion and mining
In the nitrogen cycle, how does nitrogen gas get put into the soil as ammonium?nitrogen fixation
Which organism plays the biggest role in the nitrogen cycle?bacteria
How is water removed from the atmosphere and returned to the earth?precipitation
What is the amount of land necessary to produce and maintain enough food, water, shelter and waste?ecological footprint
What are gases that keep the biosphere at a temperature that can support life?Greenhouse gases
What is the a barrier that prevents an organism from accessing its entire home range that is caused by building of roads and harvesting of forests?habitat fragmentation
What is an organism that was brought to an ecosystem and poses a threat to the stability of an organism because they prey on or crowd out a native species?invasive species
What are resources that are used up faster than they can be replenished?non-renewable resources
What is caused when pollutants in the air get into the water cycle and lower the pH of the precipitation?acid rain
In the nitrogen cycle, how is ammonium converted into the usable form of nitrates?nitrification
What gas is given off during photosynthesis and used during cellular respiration?oxygen
What gas is given off during cellular respiration and used during photosynthesis?carbon dioxide
In the nitrogen cycle, how are used nitrates in the soil returned to the atmosphere?denitrification
What are the two possible outcomes of water once it is returned to the earth?run-off and infiltration
in the nitrogen cycle, how is nitrogen in dead and decaying organisms returned to the soil as ammonium?ammonification
In the nitrogen cycle, how are nitrates taken up into the roots of plants for protein production?assimilation

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