What's in seawater? How do heavy metal ships float? Why are icebergs dangerous? Ocean scientists try to find the answers to these and other questions about the sea by exploring its margins and its... This description may be from another edition of this product.
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $15. ThriftBooks.com. Read more. Spend less.