Understanding Biogeochemical Cycles and Residence Time
1
Define biogeochemical cycles and explain why they are important to life on Earth.
2
What is the residence time, and why is it significant in understanding biogeochemical cycles?
3
Compare the residence times of water in glaciers and groundwater. What does this tell us about the availability of fresh water over time?
4
Why is the residence time of water in the atmosphere much shorter than that in the ocean?
5
How do human activities potentially affect the residence time of water in different reservoirs?
6
Explain how the distribution of water in Earth's reservoirs affects the global water cycle.
7
Given the volume and residence time data, which reservoir would you consider the most dynamic in terms of water exchange? Justify your answer.
8
Discuss the implications of the residence time of water in rivers for ecosystems and human water supply.
9
Considering the residence times, which reservoirs would be most affected by a prolonged drought? Explain your reasoning.
10
How does the concept of residence time apply to pollutants in the water cycle?
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