44 a 25.0-g sample of each of three unknown metals is added to 25.0 ml of water in graduated cylinders a, b, and c, and the final volumes are depicted in the circles below. given their densities, identify the metal in each cylinder: zinc (7.14 g/ml), iron (7.87 g/ml), or nickel (8.91 g/ml).

water is used to store them because it would keep the radiation from getting out in the open and causing harm to the workers

the major pests we deal with are insects, weeds and fungal diseases. a pesticide is a product, whether organic or chemical, used to kill the target pest. there are other techniques gardeners should use that can prevent the severe infestations that make the use of pesticides necessary