E. Give reasons. 1. The Pacific Ocean is regarded as the deepest ocean in the world. 2. The oceans affect the hydrological cycle on Earth. 3. Lake Onega's origin is glacier-tectonic in nature. 4. The Mississippi is the longest river system in North America.
Answer (1)
The Pacific Ocean is regarded as the deepest ocean in the world. The Pacific Ocean is the largest and deepest ocean on Earth, covering more than 63 million square miles (165 million square kilometers) and reaching depths of over 36,000 feet (about 11,000 meters) in areas such as the Mariana Trench. Its immense size and geological features like oceanic trenches contribute to its depth.
The oceans affect the hydrological cycle on Earth. Oceans play a crucial role in the hydrological (water) cycle by storing vast amounts of water, which helps regulate weather patterns and climate. They facilitate the evaporation of water into the atmosphere, which later falls as precipitation (rain, snow, etc.). This cycle is essential for replenishing freshwater resources on land.
Lake Onega's origin is glacier-tectonic in nature. Lake Onega, located in northwestern Russia, was formed during the last Ice Age. Its glacier-tectonic origin indicates that it was created by both glacial activity (glaciers carving out parts of the Earth's crust) and tectonic movements (shifting of Earth's plates), which shaped its basin.
The Mississippi is the longest river system in North America. The Mississippi River, along with its tributary the Missouri River, forms the longest river system in North America. Spanning approximately 3,766 miles (6,045 kilometers), this extensive river network drains a significant portion of the United States and plays a vital role in the country’s ecosystem and economy.
