Mariyam, a marine biologist, measures the length of a great white shark at 4.5 m long and its teeth at an average of 50 mm long. She wants to convert both measurements to centimeters.

450cm

50cm

Explanation:

10mm = 1 cm = 0.1 dm = 0.01 m

You always multiply by ten from right to left and divide by ten from the left to the right.

c is the answer because when something is left after something evaporates that shows the chemical change.

it's c (engineer's do their work with mechanical stuff not on any living being)