A crystallographer measures the horizontal spacing between molecules in a crystal. The spacing is 15.27 nm. What is the total width of a crystal in millimeters 105 molecules across? Write your answer as a decimal.

Polar bears give birth and hunt on sea ice. which of the following would polar bears survive during the melting of arctic ice? growing another layer of fur during summer migrate inland to search for different food sources staying put until the ice refreezes sticking to the usual diet of seals