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Structural Features of Rocks  10.-Structural-Features-of-Rocks.pdf

Metamorphic Rocks  9.-Metamorphic-Rocks.pdf

Sedimentary Rocks  8.-Sedimentary-Rocks.pdf

Igneous Rocks  7.-Igneous-Rocks.pdf

Minerals  6.-Minerals.pdf

Geological work of wind  5.Geological-work-of-wind.pdf

Geological work of running water.  4.-Geological-work-of-running-water..pdf

Geomorphology - Weathering of Rocks  3.-Geomorphology-Weathering-of-rocks.pdf

Air Pollution  Module-4-Air-Pollution.pdf

Water Pollution  Module-3-Water-Pollution.pdf