For which elements is the stock system primarily used?

Apush or pull that moves or changes and object when to objects touch

Which of these features are formed when hot groundwater is forced out through cracks in the earth's surface?

A4.86 g piece of metal was placed in a graduated cylinder containing 15.5 ml of water. the water level rose to 17.3 ml. what is the density of the metal. i need the steps of how to solve it to so i can use a formula to work out other problems.