Answer :
Answer:
1. The underlying rock structure in which the Grand Canyon developed is primarily sedimentary rock, specifically layers of sandstone, limestone, and shale. These rocks were deposited over millions of years and then uplifted and eroded to form the majestic canyon we see today.
2. The Grand Canyon is located in the United States, specifically in the state of Arizona.
3. The dimensions of the Grand Canyon as seen in Figure 1.6 depict a massive geological feature. It has an average width of around 10 miles (16 kilometers) and a depth of over 1 mile (1.6 kilometers).
4. The terraced appearance of the Grand Canyon is mainly due to the differential erosion of the various rock layers. Harder layers of rock erode more slowly than softer layers, leading to the distinctive step-like cliffs and terraces along the canyon walls.
5. The Grand Canyon has been utilized by humans for various activities, both positively and negatively. Positively, it serves as a major tourist attraction, bringing in revenue and supporting local economies. It also offers opportunities for outdoor recreation such as hiking, rafting, and camping.
On the negative side, human activities in and around the Grand Canyon can lead to environmental degradation, pollution, and habitat destruction. Overcrowding by tourists can put strain on the delicate ecosystem of the canyon, leading to issues of waste management and conservation.
In conclusion, while the Grand Canyon offers many benefits for human enjoyment and economic growth, it is crucial to manage its utilization in a sustainable manner to preserve its natural beauty and ecological balance for future generations.
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