which environmental concerns are raised with regards to the ocean?
Small plastic fragments, Marine debris, Nuclear tests
Pacific Ocean
The quantity of small plastic fragments floating in the north-east Pacific Ocean increased a hundredfold between 1972 and 2012. The ever-growing Great Pacific garbage patch between California and Japan is three times the size of France. An estimated 80,000 metric tons of plastic inhabit the patch, totaling 1.8 trillion pieces.
Marine pollution is a generic term for the harmful entry into the ocean of chemicals or particles. The main culprits are those using the rivers for disposing of their waste. The rivers then empty into the ocean, often also bringing chemicals used as fertilizers in agriculture. The excess of oxygen-depleting chemicals in the water leads to hypoxia and the creation of a dead zone.

Marine debris, also known as marine litter, is human-created waste that has ended up floating in a lake, sea, ocean, or waterway. Oceanic debris tends to accumulate at the center of gyres and coastlines, frequently washing aground where it is known as beach litter.

what is psittacosaurus? It is a genus of extinct ceratopsian dinosaur from the Early Cretaceous what kind of flora existed during the said period? Flowering plants, Mesozoic gymnosperms, Gleicheniales what kind of animals were founds in the sea at that time? Rays, modern sharks and teleosts can the second animal survive in captivity? Yes, but most species are not suitable for home aquaria, and not every species sold by pet stores are appropriate do they exhibit properties of biofluoresence? Yes, but it is a characteristic of a few shark species, such as the swell shark and the chain catshark what kind of relationship does the second species has with humans? It is not currently fished for human consumption and it is frequently displayed and bred at public aquariums. what does the first species feed on? Bony fish, molluscs, and crustaceans where are they found? The subtropical eastern Pacific Ocean between central California and to southern Mexico, with an additional population off the coast of Chile.
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Pacific Ocean [SEP] Environmental issues
The quantity of small plastic fragments floating in the north-east Pacific Ocean increased a hundredfold between 1972 and 2012. The ever-growing Great Pacific garbage patch between California and Japan is three times the size of France. An estimated 80,000 metric tons of plastic inhabit the patch, totaling 1.8 trillion pieces. Marine pollution is a generic term for the harmful entry into the ocean of chemicals or particles. The main culprits are those using the rivers for disposing of their waste. The rivers then empty into the ocean, often also bringing chemicals used as fertilizers in agriculture. The excess of oxygen-depleting chemicals in the water leads to hypoxia and the creation of a dead zone.