kailan po ba lumalaki at lumiliit ang tubig sa dagat?at saan naman ito kumukuha ng tubig para lalaki ang tubig?
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What is silt in geology?
What is stope in geology?
What separates the outer core from the mantle above it?
What is coal?
What is the difference between a canyon, gorge, and valley?
How is the age of mountains calculated?
What is sustainable development?
Why are minerals and petroleum important for manitoba?
Define shale?
What is asthenosphere?
What is oceanographers?
What is hematite?
Explain the name of the largest volcano in the world?
What is the difference between the geoid and the surface of the earth?
What is crude?