Mountains occupy about 24% of the earth surface area and store water in the form of snow, glaciers, permafrost, wetlands, and rivers, and they supply watersheds by providing ground water recharge. The... 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.