5 depth zones have been identified in the ocean. Life is most abundant in the uppermost ‘euphotic’ layer, where photosynthesis occurs. The mesopelagic is practically dark, and many creatures hide here during the day. The bathypelagic zone begins at
Essay plastic bags environmental problems The Use Of Plastic Bags Environmental Sciences Essay, they have adverse impacts in terms of waste disposal and one significant problem is that plastic bags are.
The Polar Ice-caps are melting, rendering the Polar bears and the other Arctic animals homeless. Polar bears have ruled the Arctic for years, but now they& struggling to keep up as the region undergoes a dramatic transformation.