ããã°ãã¯ãä»æ¥ã¯ã€ããŽã«çé žã¬ã¹ããããããããã«ãªããŸããïŒå°ãå°éçãªå 容ãªã®ã§ããªãã¹ãç°¡åãªå ±åã«ããããšæããŸããããããçé žã¬ã¹ã£ãŠïŒçé žã¬ã¹ã¯äºé žåççŽ ã®ããšã§ããäºé žåççŽ ãšãããšããŸãè¯ããªãã€ã¡ãŒãžãæã€æ¹ãå°ãªããªãã®ãããããŸããããæ€ç©ã«ãšã£ãŠãçé žã¬ã¹ïŒäºé žåççŽ ïŒã¯ãšãŠãéèŠãªååšãªã®ã§ããçé žã¬ã¹ã®å¹æãšã¯ïŒã€ããŽã¯å åæãããŠèªèº«ã®ãšãã«ã®ãŒãçæããŸããããããå åæãããããšã§ãçŸå³ããã€ããŽãåç©«ã§ããããã«ãªããŸããå åæã§ã¯ãæ¥å ïŒå ãšãã«ã®ãŒïŒããšãæ°Žããšãçé žã¬ã¹ããå¿ èŠãšãªããŸããã§ãã®ã§ãã€ããŽã®ãããªããŠã¹æ œå¹ã§ã¯ã人工çã«çé žã¬ã¹ãäžããããšã§ãã€ããŽã®å åæå¹çãé«ããããšãã§ããã®ã§ããã€ãŸããã€ããŽã®ããã©ãŒãã³ã¹ãæ倧éã«æŽããããšã§ãããçŸå³ããã€ããŽãäœããããã«ãªããŸãããšããããšã§ãä»åã¯å°ãé£ããå 容ã§ããã®ã§ããã®ãããã§å€±ç€ŒããããŸããèºå±ããšããããã