PCBs are a class of chemicals that don't easily break down, even though they have been banned for over 30 years. These chemicals collect in fat and build up in fish that are fatty and in fish that eat other fish. As striped bass and bluefish migrate up and down the East Coast, they pick up PCBs from eating other fish.
Best Answer: Consider how many tires it has, Each mobile home tire is designed to carry 1 ton. The front tounge is also designed to carry 1 ton. So a mobile home with 4 tires weighs about 5 tons. A mobile home with 6 tires weighs about 7 tons. Plus whatever extras you have put into the home. Source(s):
As a polar bear gets older and grows into an adult its weight increases. The average weight of a female polar bear is usually between 150-250 kg. While the average weight of a male polar bear is usually between 350-700 kg.Seeing as the weight of the average small family car is said to be around 1000kg, a polar bear weighing 700kg is quite a weight.hile the average weight of a male polar bear is usually between 350-700 kg. Seeing as the weight of the average small family car is said to be around 1000kg, a polar bear weighing 700kg is quite a weight.