Even though Livia Rocha has traveled across the country visiting numerous national parks, she said her favorite nature spot is her own Belmont backyard. The 8-year-old “loves worms and snails, getting her hands dirty, and spending time observing wildlife and wildflowers,” said her mother, Jaqueline Rocha. Hoping to gain hands-on experience and learn more about the natural world, the Butler Elementary School third-grader is vying to become the 2026 Jr. Ranger Competition champion. The winner will receive $20,000, appear in…