Answer: d. big bend national park
Explanation: Big Bend National Park is located in Park, Texas in the area of the Chihuahuan Desert along the Rio Grande. The state park was first established in 1933 as "Texas Canyons State Park" whereas the name was later changed that year. In 1935, Congress authorized preservation of land for the beneļ¬t and enjoyment of present and future generations and was officially established in 1944 as a state park. The park includes rich biological and geological diversity, cultural historic resources such as ancient fossils, and miles of natural terrain and recreational opportunities, such as over 200 miles of hiking trails.
It is a designated national park with conservation efforts aimed at protecting the natural resources, wildlife, and ecosystems in the area. The park implements sustainable practices and regulations to ensure that land use is managed in an environmentally friendly way. It provides a habitat for a diverse range of plant and animal species and is seen as a national treasure.