TF 1999 Exploring Caves 1€¦ · ost American caves are big holes that form in limestone rock. The holes begin as cracks in the limestone. Water flows down the cracks and dissolves

Page 1 <img data-url='document/tf-1999-exploring-caves-1-ost-american-caves-are-big-holes-that-form-in-limestone.html?page=1' data-page='1' class='cut-thumb lazyload' alt='Page 1: TF 1999 Exploring Caves 1€¦ · ost American caves are big holes that form in limestone rock. The holes begin as cracks in the limestone. Water flows down the cracks and dissolves' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader033.cupdf.com/reader033/viewer/2022042812/5faf38776cdeda2c091ab5ff/html5/thumbnails/1.jpg' width='140' height='200' /> Page 2 <img data-url='document/tf-1999-exploring-caves-1-ost-american-caves-are-big-holes-that-form-in-limestone.html?page=2' data-page='2' class='cut-thumb lazyload' alt='Page 2: TF 1999 Exploring Caves 1€¦ · ost American caves are big holes that form in limestone rock. The holes begin as cracks in the limestone. Water flows down the cracks and dissolves' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader033.cupdf.com/reader033/viewer/2022042812/5faf38776cdeda2c091ab5ff/html5/thumbnails/2.jpg' width='140' height='200' /> Page 3 <img data-url='document/tf-1999-exploring-caves-1-ost-american-caves-are-big-holes-that-form-in-limestone.html?page=3' data-page='3' class='cut-thumb lazyload' alt='Page 3: TF 1999 Exploring Caves 1€¦ · ost American caves are big holes that form in limestone rock. The holes begin as cracks in the limestone. Water flows down the cracks and dissolves' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader033.cupdf.com/reader033/viewer/2022042812/5faf38776cdeda2c091ab5ff/html5/thumbnails/3.jpg' width='140' height='200' /> Page 4 <img data-url='document/tf-1999-exploring-caves-1-ost-american-caves-are-big-holes-that-form-in-limestone.html?page=4' data-page='4' class='cut-thumb lazyload' alt='Page 4: TF 1999 Exploring Caves 1€¦ · ost American caves are big holes that form in limestone rock. The holes begin as cracks in the limestone. Water flows down the cracks and dissolves' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader033.cupdf.com/reader033/viewer/2022042812/5faf38776cdeda2c091ab5ff/html5/thumbnails/4.jpg' width='140' height='200' />

TF 1999 Exploring Caves 1€¦ · ost American caves are big holes that form in limestone rock. The holes begin as cracks in the limestone. Water flows down the cracks and dissolves

Documents