The sea star is under species protection due to its declining population and vulnerability to various threats such as habitat destruction, pollution, and overharvesting. By being placed under species protection, regulations and conservation efforts can be implemented to help safeguard the sea star population and prevent its further decline. This protection is crucial in ensuring the survival and preservation of this important marine species for future generations. **

Yes, you can camp under the open sky at the Baltic Sea in certain areas. Many beaches along the Baltic Sea coast allow camping, but it is important to check local regulations and obtain any necessary permits before setting up camp. Some designated camping areas may have facilities like toilets and fire pits, while wild camping may be allowed in certain areas with restrictions to protect the environment. It is always best to respect the natural surroundings and leave no trace when camping at the Baltic Sea. **

It is unlikely that New York City will go completely underwater due to rising sea levels. However, the city is at risk of increased flooding and damage from storm surges as sea levels continue to rise. NYC has implemented various measures to mitigate the impact of rising sea levels, such as building sea walls and improving drainage systems. Continued efforts to adapt to climate change will be crucial in ensuring the city's resilience against future sea level rise. **

The North Sea, Baltic Sea, and Mediterranean Sea are all partially enclosed bodies of water, while the open sea refers to the vast expanse of ocean that is not enclosed by land. The North Sea and Baltic Sea are located in northern Europe and are partially enclosed by surrounding countries, while the Mediterranean Sea is connected to the Atlantic Ocean but is largely enclosed by land. The open sea, on the other hand, refers to the unrestricted ocean waters that are not enclosed by land. **

Yes, it is possible to get a tan under a beach umbrella by the sea. While the umbrella provides some shade and protection from direct sunlight, it does not completely block out all UV rays. UV rays can still reflect off the sand, water, and surrounding surfaces, leading to indirect sun exposure. Additionally, UV rays can penetrate through the fabric of the umbrella, especially if it is made of a light material or if it is wet. Therefore, it is still important to use sunscreen and take other sun protection measures even when sitting under a beach umbrella. **

In Jules Verne's "20,000 Leagues Under the Sea," Captain Nemo only has one hand because he lost the other in a mysterious accident. The details of the accident are not fully explained in the novel, but it is mentioned that it occurred during a violent episode in Nemo's past. This injury serves as a physical reminder of Nemo's troubled history and adds to the air of mystery and intrigue surrounding his character. **

It is possible that parts of Northern Germany, Denmark, the Netherlands, and Belgium could be affected by rising sea levels in the future. Climate change is causing sea levels to rise, which could lead to increased flooding and erosion in low-lying coastal areas. However, these countries have extensive systems of dikes, levees, and other coastal defenses in place to protect against flooding. Additionally, ongoing efforts to mitigate climate change and adapt to rising sea levels may help to prevent widespread inundation of these regions in the future. **

No, the Baltic Sea is not a Wadden Sea. The Wadden Sea is a coastal wetland area in the southeastern part of the North Sea, known for its extensive tidal flats and salt marshes. The Baltic Sea, on the other hand, is a brackish sea located in Northern Europe, bordered by several countries including Sweden, Finland, and Germany. While both bodies of water are important coastal ecosystems, they are distinct in their geographical and ecological characteristics. **