div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: · passive design strategies usually low-tech as well as active systems usually high-tech that require less maintenance less resources fewer chemicals and are src=https:reader030vdocumentinreader030viewer20220412225e0ba262ba17a944ba706614html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 2button div class=ts-image amp-img class=ts-thumb alt=Page 2: · passive design strategies usually low-tech as well as active systems usually high-tech that require less maintenance less resources fewer chemicals and are src=https:reader030vdocumentinreader030viewer20220412225e0ba262ba17a944ba706614html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 3button div class=ts-image amp-img class=ts-thumb alt=Page 3: · passive design strategies usually low-tech as well as active systems usually high-tech that require less maintenance less resources fewer chemicals and are src=https:reader030vdocumentinreader030viewer20220412225e0ba262ba17a944ba706614html5thumbnails3jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 4button div class=ts-image amp-img class=ts-thumb alt=Page 4: · passive design strategies usually low-tech as well as active systems usually high-tech that require less maintenance less resources fewer chemicals and are src=https:reader030vdocumentinreader030viewer20220412225e0ba262ba17a944ba706614html5thumbnails4jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 5button div class=ts-image amp-img class=ts-thumb alt=Page 5: · passive design strategies usually low-tech as well as active systems usually high-tech that require less maintenance less resources fewer chemicals and are src=https:reader030vdocumentinreader030viewer20220412225e0ba262ba17a944ba706614html5thumbnails5jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 6button div class=ts-image amp-img class=ts-thumb alt=Page 6: · passive design strategies usually low-tech as well as active systems usually high-tech that require less maintenance less resources fewer chemicals and are src=https:reader030vdocumentinreader030viewer20220412225e0ba262ba17a944ba706614html5thumbnails6jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 7button div class=ts-image amp-img class=ts-thumb alt=Page 7: · passive design strategies usually low-tech as well as active systems usually high-tech that require less maintenance less resources fewer chemicals and are src=https:reader030vdocumentinreader030viewer20220412225e0ba262ba17a944ba706614html5thumbnails7jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 8button div class=ts-image amp-img class=ts-thumb alt=Page 8: · passive design strategies usually low-tech as well as active systems usually high-tech that require 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that require less maintenance less resources fewer chemicals and are src=https:reader030vdocumentinreader030viewer20220412225e0ba262ba17a944ba706614html5thumbnails13jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 14button div class=ts-image amp-img class=ts-thumb alt=Page 14: · passive design strategies usually low-tech as well as active systems usually high-tech that require less maintenance less resources fewer chemicals and are src=https:reader030vdocumentinreader030viewer20220412225e0ba262ba17a944ba706614html5thumbnails14jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 15button div class=ts-image amp-img class=ts-thumb alt=Page 15: · passive design strategies usually low-tech as well as active systems usually high-tech that require less maintenance less resources fewer chemicals and are src=https:reader030vdocumentinreader030viewer20220412225e0ba262ba17a944ba706614html5thumbnails15jpg width=142 height=106 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