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Assessment
Which of the following is the largest freshwater resource on Earth?
Glaciers and ice caps
Lakes
Rivers
Groundwater
What is the main effect of droughts on ecosystems?
Increased biodiversity
Habitat destruction
Enhanced nutrient cycling
Expansion of aquatic habitats
How does water pollution impact aquatic ecosystems?
It improves the quality of water.
It can cause dead zones in oceans.
It has no significant effects.
It increases fish populations.
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