Here’s how many zones are in the ocean and how they are different.
The oceans cover over 70% of the Earth’s surface. The marine ecosystem is the largest and most abundant in the world. But most of the ocean is permanently dark and incredibly difficult to observe. As of 2022, thehad mapped slightly more than 23% of the seafloor in great detail, and even less has been explored with underwater cameras or submersibles. Mapping the seafloor is the first step in exploring the unknown depths of our global ocean.Sonar stands for sound navigation and ranging.
Scientists and governments around the world recognize the importance of making a high-resolution global map of the seafloor. An international collaboration called the Nippon Foundation-GEBCO Seabed 2030 Project aims to produce a high-resolution global map of the seafloor by 2030. It has been calculated that it would take one ship nearly 1,000 years to map the entire ocean at all water depths.NOAA scientists say a global seafloor map will benefit us all.
Which of these whale species is one of the world’s most endangered throughout its range? It is estimated to have a population size ofC. The population has been declining since 2010. They feed at or near the surface, which makes them very vulnerable to ship strikes, one of the leading causes of their mortality.D. Blue whales weigh up to 330,000 pounds. Fin whales weigh 80,000 to 160,000 pounds, Minke whales weighs up to 20,000 pounds and Cuvier’s beaked whale weigh 4,000 to 6,800 pounds.
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