6 min read
This study guide covers biogeochemical cycles, focusing on the carbon cycle. It explains Earth as a closed system, the fast and slow carbon cycles, land-based and ocean-based mini-cycles (including photosynthesis, respiration, decomposition, and sedimentation), and carbon sinks. It also discusses human impacts like fossil fuel use, deforestation, agriculture, and the resulting global warming. Finally, it provides exam tips, focusing on high-priority topics, common question types, and strategies for success.
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Question 1 of 11
In the grand scheme of things, our planet Earth 🌍 is best described as what type of system in terms of matter?
An open system, where matter is constantly exchanged with space
A closed system, where matter is neither created nor destroyed
A dynamic system, where matter is created and destroyed randomly
An isolated system, where no matter or energy is exchanged