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         <author>20204_300</author>
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         <author>20226_169</author>
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         <author>20221_652</author>
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         <pubDate>2025-10-21 05:41:34 UTC</pubDate>
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         <title></title>
         <author>20207_210</author>
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         <title></title>
         <author>yeonbinlee76</author>
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https://kri.surveybox.kr/?pid=S19351yvorkw&amp;grpid=rdn&amp;rtype=4010291
]]></description>
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         <pubDate>2025-10-24 02:52:25 UTC</pubDate>
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         <title>해수,지하수,빙하,호수&amp;하천수</title>
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         <description><![CDATA[<p>해수를 담수화 해서 식수 공업용수 농업용수등등으로 만든답니다</p><p>지하수는 담수화해 농업용수 공업용수 생활용수 등등으로 만든데요</p><p>빙하는 인공빙하로 만들어 사막에 도움을 준데요</p><p>호수는 식수 농업 산업 발전 홍수조절등 많이 도움이 됩니다</p><p>하천수는 생활용수 농업용수 공업용수 수력발전등등 뭐많아요</p><p><br/></p><p><br/></p><p><br/></p><p><br/></p><p><br/></p><p><br/></p>]]></description>
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         <pubDate>2025-10-24 03:10:43 UTC</pubDate>
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         <title></title>
         <author>20221_652</author>
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         <description><![CDATA[<p>해수 : 해수담수화, 해수전지</p><p>빙하 : 수력발전, 식수</p><p>지하수 : 생활용수, 냉난방</p><p>하천수와 호수 : 신재생 에너지 생산, 용수 공급</p>]]></description>
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         <pubDate>2025-10-24 03:13:45 UTC</pubDate>
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         <title>빙하의 활용 사례</title>
         <author>20206_173</author>
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         <description><![CDATA[<ul><li><p>빙하에서 녹아내린 물을 농업용으로 활용</p></li><li><p>정제된 빙하수를 생수로 판매</p></li><li><p>빙하에서 녹은 물을 수력발전소의 원천으로 활용</p></li><li><p>빙하를 선박으로 운반해 담수화해 사용</p></li></ul>]]></description>
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         <pubDate>2025-10-24 03:13:50 UTC</pubDate>
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         <title></title>
         <author>20222_209</author>
         <link>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648510201</link>
         <description><![CDATA[<p>지하수-농어업용수,생활용수,공업용수</p><p>빙하-농/산업용수, 음료수</p><p>해수-해수농업</p><p>하천수와 호수-식수,수력발전</p>]]></description>
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         <pubDate>2025-10-24 03:14:21 UTC</pubDate>
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      <item>
         <title>빙하</title>
         <author>20216_146</author>
         <link>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648510503</link>
         <description><![CDATA[<p>빙하는 담수 저장소, 식수, 농업용수, 수력 발전소에 활용한다. 빙하가 녹은 물은 오랜 기간에 걸쳐 정화되어 매우 깨끗한 식수원 역할을 한다. 농작물 재배를 위한 관개 시스템에 사용이 되고, 지역의 농업 생산성과 경제 활성화에 기여한다. </p>]]></description>
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         <pubDate>2025-10-24 03:14:28 UTC</pubDate>
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         <title>해수</title>
         <author>20209_113</author>
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         <description><![CDATA[<p>바다에 녹아있는 나트륨 이온을 활용하여 전기를 생산하는 해수전지나 기존 배터리의 양극을 해수로 대채하는 해수배터리 같이 전기분야에 활용할 수 있다.</p>]]></description>
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         <pubDate>2025-10-24 03:14:37 UTC</pubDate>
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         <title></title>
         <author>20214_251</author>
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         <description><![CDATA[<p>해수-생활용수, 식수, 농업용수</p><p>빙하-수력발전소의 원천, 식수, 농업용수</p><p>지하수-분수대용수, 냉난방</p>]]></description>
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         <pubDate>2025-10-24 03:14:55 UTC</pubDate>
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         <title></title>
         <author>20204_300</author>
         <link>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648511618</link>
         <description><![CDATA[<p>해수의 활용사례 : 식수, 산업용수, 농업, 에너지생산</p><p>빙하의 활용 사례 : 수자원 제공- 식수, 농업용수, </p><p>수력발전</p>]]></description>
         <enclosure url="" />
         <pubDate>2025-10-24 03:14:56 UTC</pubDate>
         <guid>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648511618</guid>
      </item>
      <item>
         <title>20225</title>
         <author></author>
         <link>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648512117</link>
         <description><![CDATA[<p>지하수는 생활용수, 농업용수, 공업용수 등으로 이용된다.</p><p><br/></p>]]></description>
         <enclosure url="" />
         <pubDate>2025-10-24 03:15:12 UTC</pubDate>
         <guid>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648512117</guid>
      </item>
      <item>
         <title>해수</title>
         <author>20215_184</author>
         <link>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648512477</link>
         <description><![CDATA[<p>해수는 담수화를 통해 마실 수 있는 물이나 공업용수를 얻는 것, 해수전지를 통해 전기를 생산하고 바닷물을 살균하는 것이다. 또한 해수 담수화 과정에서 발생하는 농축수를 활용해 이산화탄소를 줄이거나 자원을 회수하는 연구가 진행 중이다.</p>]]></description>
         <enclosure url="" />
         <pubDate>2025-10-24 03:15:23 UTC</pubDate>
         <guid>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648512477</guid>
      </item>
      <item>
         <title>빙하수</title>
         <author></author>
         <link>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648512813</link>
         <description><![CDATA[<p><strong>식수, 농업, 산업용수로 사용될 뿐만 아니라, 뷰티 제품, 건강 음료, 또는 특별한 위스키 제조 등 다양한 분야에서 활용</strong></p>]]></description>
         <enclosure url="" />
         <pubDate>2025-10-24 03:15:36 UTC</pubDate>
         <guid>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648512813</guid>
      </item>
      <item>
         <title>빙하</title>
         <author>20209_113</author>
         <link>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648513277</link>
         <description><![CDATA[<p>빙하에서 녹아나오는 담수를 이용해 식수나 생활용수, 공업용수 등에 사용할 수 있고 빙하의 물을 활용해 수력발전까지 사용할 수 있다.</p>]]></description>
         <enclosure url="" />
         <pubDate>2025-10-24 03:15:54 UTC</pubDate>
         <guid>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648513277</guid>
      </item>
      <item>
         <title>수자원과 관련된 자료 조사</title>
         <author>20227_122</author>
         <link>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648513336</link>
         <description><![CDATA[<p><strong>해수</strong>: 담수로 바꾸고 식수로 사용</p><p><strong>빙하</strong>: 식수, 농업, 수력 발전에 사용되는 담수 자원으로 활용되고, 기후 변화 연구를 위한 귀중한 정보원으로 활용</p><p><strong>지하수</strong>: 상하수도, 농업, 산업, 조경, 냉난방 등 매우 다양하게 활용</p><p><strong>하천수와 호수</strong>: 농업용으로 사용, 수력발전 등</p>]]></description>
         <enclosure url="" />
         <pubDate>2025-10-24 03:15:56 UTC</pubDate>
         <guid>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648513336</guid>
      </item>
      <item>
         <title>20218이세준</title>
         <author>20218_130</author>
         <link>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648513508</link>
         <description><![CDATA[<p>해수:농업용수</p><p>빙하: 생활식수</p><p>하천수,호수:수력발전</p><p>지하수:생활용수, 공업용수( 빙하와 비슷한 쓰임)</p>]]></description>
         <enclosure url="" />
         <pubDate>2025-10-24 03:16:03 UTC</pubDate>
         <guid>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648513508</guid>
      </item>
      <item>
         <title>해수의 활용 사례</title>
         <author>20208_256</author>
         <link>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648513901</link>
         <description><![CDATA[<ol><li><p>해수를 담수로 만들어 사용</p></li></ol><ol start="2"><li><p>바닷물을 작물에 뿌려 활용</p></li><li><p>바닷물로 전기를 만들어 활용</p></li></ol>]]></description>
         <enclosure url="" />
         <pubDate>2025-10-24 03:16:19 UTC</pubDate>
         <guid>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648513901</guid>
      </item>
      <item>
         <title>20205김창현</title>
         <author>20205_354</author>
         <link>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648513979</link>
         <description><![CDATA[<p>해수</p><p>해수에는 염분이 많아서 그냥 마시거나 쓸수없다. 그래서 해수 담수화를 통해 쓸 수있는 물로 바꾼다</p>]]></description>
         <enclosure url="" />
         <pubDate>2025-10-24 03:16:23 UTC</pubDate>
         <guid>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648513979</guid>
      </item>
      <item>
         <title>지하수</title>
         <author></author>
         <link>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648513997</link>
         <description><![CDATA[<p><strong><mark>생활용수, 공업용수, 농·어업용수 등</mark></strong> 다양한 분야에 활용한다</p>]]></description>
         <enclosure url="" />
         <pubDate>2025-10-24 03:16:23 UTC</pubDate>
         <guid>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648513997</guid>
      </item>
      <item>
         <title>20228 최성준</title>
         <author>20228_111</author>
         <link>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648514142</link>
         <description><![CDATA[<p>해수의 활용 사례</p><p>담수화 기술을 통해</p><p>1.생활용수</p><p>2.공업용수</p><p>빙하의 활용 사례</p><p>1.식수</p><p>2.농업</p><p>3.수력</p><p>지하수의 활용 사례</p><p>1.생수</p><p>2.온천수 사용</p><p><br/></p>]]></description>
         <enclosure url="" />
         <pubDate>2025-10-24 03:16:29 UTC</pubDate>
         <guid>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648514142</guid>
      </item>
      <item>
         <title>해수</title>
         <author>20203_356</author>
         <link>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648515623</link>
         <description><![CDATA[<p>해수농업이라는 농업 기법으로 사용할수 있다.</p><p>이는 주로 염분에 강한 작물에 사용하고, 작물의 종류와 특성에 맞춰 바닷물의 희석 농도를 조절하여 사용한다.</p>]]></description>
         <enclosure url="" />
         <pubDate>2025-10-24 03:17:27 UTC</pubDate>
         <guid>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648515623</guid>
      </item>
      <item>
         <title>해수</title>
         <author>20211_710</author>
         <link>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648515733</link>
         <description><![CDATA[<ul><li><p><strong>담수화:</strong></p><p>해수를 증발시켜 식수나 산업용수로 사용합니다. 최근에는 역삼투막 필터를 이용하는 기술이 주를 이루고 있으며, 태양열과 바람을 이용해 담수화 효율을 높이는 기술도 개발되고 있습니다.&nbsp;</p></li></ul>]]></description>
         <enclosure url="" />
         <pubDate>2025-10-24 03:17:31 UTC</pubDate>
         <guid>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648515733</guid>
      </item>
      <item>
         <title></title>
         <author>20207_210</author>
         <link>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648515735</link>
         <description><![CDATA[<p>지하수 공업용수 농업용수 생활용수로 이용됨</p>]]></description>
         <enclosure url="" />
         <pubDate>2025-10-24 03:17:31 UTC</pubDate>
         <guid>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648515735</guid>
      </item>
      <item>
         <title>해수의 활용 사례</title>
         <author>20201_975</author>
         <link>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648516437</link>
         <description><![CDATA[<p>해수를 이용해서 해수욕장, 해양 레저스포츠 등의 관광 산업도 발전 시킬 수 있고, 바닷물과 궁합이 잘 맞는 농작물에 쓰여 해수 농업을 할 때도 쓰일 수 있다. 또, 담수화해서 물 부족을 해결할 수도 있다.</p>]]></description>
         <enclosure url="" />
         <pubDate>2025-10-24 03:18:00 UTC</pubDate>
         <guid>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648516437</guid>
      </item>
      <item>
         <title></title>
         <author>20217_120</author>
         <link>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648517098</link>
         <description><![CDATA[<p>빙하 특징 3가지</p><p><br/></p><ul><li><p>형성 및 압축</p></li><li><p>움직임</p></li><li><p>지형변화</p><p><br/></p><p>활용사례</p></li><li><p>식수</p></li><li><p>농업용수</p></li></ul>]]></description>
         <enclosure url="" />
         <pubDate>2025-10-24 03:18:24 UTC</pubDate>
         <guid>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648517098</guid>
      </item>
      <item>
         <title>하천수</title>
         <author>20202_406</author>
         <link>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648517990</link>
         <description><![CDATA[<p>농업에 활용된다</p><p>댐을만들어 전력으로 쓴다</p><p>식용수로 바꿀수있다</p>]]></description>
         <enclosure url="" />
         <pubDate>2025-10-24 03:18:59 UTC</pubDate>
         <guid>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648517990</guid>
      </item>
      <item>
         <title>지하수</title>
         <author>20209_113</author>
         <link>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648518023</link>
         <description><![CDATA[<p>지하수는 빗물로 계속 보충 되므로 하천의 유지용수로 사용 될 수도 있고 쉽게 활용할 수 있는 하천이나 호수가 부족할 때 개발해 생활용수나 공업용수, 농업용수등으로 사용도 가능하다.</p>]]></description>
         <enclosure url="" />
         <pubDate>2025-10-24 03:19:00 UTC</pubDate>
         <guid>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648518023</guid>
      </item>
      <item>
         <title>(수자원)  자료조사</title>
         <author>20226_169</author>
         <link>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648518110</link>
         <description><![CDATA[<p>해수:담수로 바꾸어 식수로 사용된다</p><p>빙하:식수,농업,수력 발전에 사용되는 담수 자원으로 활용 되고, 기후 변화 연구를 위한 귀중한 정보원으로 활용한다.</p><p>지하수:상하수도, 농업,산업,조경, 냉난방 등 매우 다양하게 활용한다.</p><p>하천수와 호수: 농업용으로 사용되며, 수력 발전 등에 사용된다.</p>]]></description>
         <enclosure url="" />
         <pubDate>2025-10-24 03:19:04 UTC</pubDate>
         <guid>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648518110</guid>
      </item>
      <item>
         <title>수자원의 이용</title>
         <author>20212_408</author>
         <link>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648519543</link>
         <description><![CDATA[<p>해수: 수력에너지에, 담수로 변환 후 식수로써 사용 등등으로 사용</p><p><br/></p><p>빙하: 식수, 거주지역, 연대측정과 시대-기후적 변화를 측정</p><p>지하수: 상하수도를 통해서 식수로써 사용하거나 농업에서 사용한다, 오염 정도가 낮은 편이기에, 초순수 물로써 정제 후, 반도체 제조 과정에서 사용되기도 한다.</p><p><br/></p><p>하천수와 호수: 정제과정을 거쳐서 아리수로써 사용, 농업용수로써 사용하기도 한다. </p><p><br/></p><p><br/></p><p><br/></p>]]></description>
         <enclosure url="" />
         <pubDate>2025-10-24 03:20:05 UTC</pubDate>
         <guid>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3648519543</guid>
      </item>
      <item>
         <title></title>
         <author>20222_209</author>
         <link>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3664407311</link>
         <description><![CDATA[<p>비열 예: </p><p>자동차 냉각수-비열이 큰 액체를 사용해 냉각수가 쉽게 뜨거워지지 않음. 따라서 엔진 효과적으로 냉각할 수 있음</p><p>난방용 온수관-비열이 작은 물질로 만들어져 열 전도율이 높음</p><p><br/></p><p>열팽창 예: </p><p>내열유리 식기-열팽창이 적은 물질을 사용해 급격한 온도변화에도 접시가 깨지지 않음</p><p>참나무통-참나무통의 틈을 막기 위해 금속 띠를 뜨겁게 달궈 씌운 후, 식으면서 수축하는 성질을 이용해 통을 단단하게 고정함</p>]]></description>
         <enclosure url="" />
         <pubDate>2025-11-04 00:06:29 UTC</pubDate>
         <guid>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3664407311</guid>
      </item>
      <item>
         <title>20204 김이진</title>
         <author>20204_300</author>
         <link>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3664413056</link>
         <description><![CDATA[<p>비열을 활용한 예 </p><p>찜질팩 - 비열이 큰 물 이용</p><p>프라이팬 - 비열이 작아 빨리 뜨거워져 조리 시간을 단축한다.</p><p><br/></p><p>열팽장을 활용한 예</p><p>열기구 - 기체를 데워 밀도를 낮추면 부피가 팽창하여 공기보다 가벼워지므로 떠오른다.</p><p>탁구공 - 찌르러진 탁구공을 물에 넣으면 탁구공 안의 공기가 팽창하여 원래 모양으로 돌아온다.</p><p><br/></p>]]></description>
         <enclosure url="" />
         <pubDate>2025-11-04 00:10:37 UTC</pubDate>
         <guid>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3664413056</guid>
      </item>
      <item>
         <title>20208남예진</title>
         <author>20208_256</author>
         <link>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3664417891</link>
         <description><![CDATA[<p>비열을 활용한 예</p><p>보일러-비열이 큰 물을 이용해 난방을 한다.</p><p>뚝배기-비열이 커서 오랫동안 식지 않는다.</p><p>열팽창을 활용한 예</p><p>수레바퀴-바퀴에 끼우는 철 테를 가열해서 팽창시킨 후 바퀴에 씌우고 식히면 수축하면서 바퀴가 고정된다.</p><p>음료수 병-여름에 열팽창으로 인해 음료수 병이 터질 수 있어서 음료를 끝까지 채우지 않는다.</p><p><br/></p><p><br/></p>]]></description>
         <enclosure url="" />
         <pubDate>2025-11-04 00:13:26 UTC</pubDate>
         <guid>https://padlet.com/changdongms1/tshzj06otnmh669q/wish/3664417891</guid>
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