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Speleology
Speleology (also spelled spelæology or spelaeology) is the scientific study of caves and other karst features, their make-up, structure, physical properties, history, life forms, and the processes by which they form (speleogenesis) and change over time (speleomorphology). The term speleology is also sometimes applied to the recreational activity of exploring caves, but this is more properly known as caving, spelunking or potholing. Speleology and caving are often connected, as the physical skills required for in situ study are the same. Speleology is a cross-disciplinary field that combines the knowledge of chemistry, biology, geology, physics, meteorology and cartography to develop portraits of caves as complex, evolving systems.
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稅務資訊表單 (IRS 形式 4506-t)
Banking; Refinance
此表單允許個人,或一個或多個年聯邦所得稅申報表如您的銀行,以驗證稅務資訊以外的協力廠商報告。IRS 形式 4506 T 給你一張紙,簽署並返回相對於年稅務檔的收集、 製作拷貝和發送那些添加方便。 ...