Karst is a distinctive topography in which the landscape is largely shaped by the dissolving action of water on carbonate bedrock (usually limestone, dolomite, or marble). This geological process, occurring over many thousands of years, results in unusual surface and subsurface features ranging from sinkholes, vertical shafts, disappearing streams, and springs, to complex underground drainage systems and caves.
Saturday, December 12, 2009
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KENAIKAN HARGA EMAS 1 TAHUN
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"ALLAH JADIKAN DUA LOGAM YANG BERNILAI (EMAS DAN PERAK) SEBAGAI PENGUKUR KEPADA BARANGAN DAGANGAN. LOGAM INI SERINGKALI DIJADIKAN UKURAN KEKAYAAN SESEORANG. WALAUPUN ADAKALANYA BARANGAN DAGANGAN LAIN TURUT MENYIMPAN NILAI YANG TERSENDIRI, AKHIRNYA IA AKAN DIGUNAKAN UNTUK MENDAPATKAN EMAS DAN PERAK. BARANGAN DAGANGAN LAIN TERKESAN AKIBAT TURUN NAIK PASARAN, SEDANGKAN EMAS DAN PERAK TIDAK." - Ibnu Khaldun -
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