Discover why soil is an important resource in this photo-filled nonfiction book for budding young scientists. What's so great about soil? A lot, actually! In this Pebble Explore book, discover how this often overlooked--or even annoying--part of nature is essential to our world. We need soil to grow crops and construct buildings and roads. Soil is even important to the air we breathe! With eye-popping photographs, quick facts, and beyond-the-book back matter, Why Do We Need Soil? will have young researchers and science fans exploring more about the NATURE WE NEED. More Nature We Need: Why Do We Need Bats? Why Do We Need Bees? Why Do We Need Poop? Why Do We Need Rain? Why Do We Need Trees?