Environment can lead to a skewed male to female ratio environment can influence the ratio of males to females in plants as well as in human beings, say studies done by two different teams of scientists. In case of plants, it is an aspect of demography balancing the population. For us, it is an environmental effect whose cause can be traced back to our activities. It has been seen
The article discusses the emergence of polychlorinated biphenyls (PCB). Manufactured from the waste products of the crude oil refining process and a range of chlorinated chemicals, these oily, syrupy liquids had a multitude of uses and have been described as being as near perfect as any industrial chemical can be. PCBs conduct heat but not electricity and they are not water soluble.
