Answer: Polychlorinated biphenyls (PCBs) are a group of manmade chemicals. They are oily liquids or solids, clear to yellow in color, with no smell or taste. PCBs are very stable mixtures that are resistant to extreme temperature and pressure. PCBs were used widely in electrical equipment like capacitors and transformers. They also were used in hydraulic fluids, heat transfer fluids, lubricants, and plasticizers. The primary company that made PCBs in the United States was Monsanto Inc., mainly using the name Aroclor. Commercial production of PCBs ended in 1977 because of health effects associated with exposure. In 1979, the U.S. Environmental Protection Agency (USEPA) banned the use of PCBs; however, PCBs are still present in many pre-1979 products.
Because they both have a nucleus but both of them do not have a cell wall
Answer:
False
Explanation:
Plastic is very unreactive... Can't degraded easily.
C. Bleach. Cleans stuff out of everything
Mammals are relatively complex and intelligent animals.
They give birth to live offspring, have hair or fur on their bodies, and possess mammary glands that produce milk for their young. They breath air with lungs and have ears that stick out instead of the earholes, such as what reptiles and birds have.