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Write the standard form of the equation of the circle with radius r and center (h, k) .
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Coral Reefs
Diverse underwater ecosystems held together by calcium carbonate structures secreted by corals, often referred to as the rainforests of the sea.
Desertification
describes the process by which fertile land becomes desert, typically as a result of drought, deforestation, or inappropriate agriculture.
Overgraze
The depletion of vegetation due to animals eating the plants more quickly than the plants can regenerate, leading to environmental degradation.
Rainwater Runoff
Water from rain or snow that flows over the surface of the ground, potentially carrying pollutants to nearby streams, rivers, and lakes.
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