The study of life’s history on Earth is an ongoing effort to follow the thread further and further back in time. As amazing and fascinating as a few billion years’ worth of fossils are, we still ultimately want that Holy Grail that illuminates the origins of life on Earth. Unfortunately, that goal collides with the fact that the earliest evidence stands the least chance of being preserved through the eons for us to find
The best answer is choice C. why? Because the rivers flow from the dry side of Texas to the very wet and damp side of Texas. hope this helped, have an amazing day :)