Final answer:
Changes in the water cycle directly impact freshwater availability in terrestrial ecosystems.
Explanation:
The availability of fresh water in terrestrial ecosystems is most directly affected by:
- Availability of fresh water increases as fewer glaciers form. Glaciers contribute to the freshwater supply.
- Greater levels of precipitation lead to increased availability of fresh water. More precipitation means more replenishment of freshwater sources.
- Availability of fresh water increases as plants lose more water by transpiration. Transpiration affects the water content in the ecosystem.
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