Answer:
To help determine what type of rock it is
Explanation:
Geologists can use information such as color, hardness, grain size, texture and other aspects of the rock to figure out the classification of a rock. for example, a light blue rock with no visible grain that is translucent and has a hardness of 9 is most likely going to be a saphire. hope this helps!!!!
The answer is 18 you multiply wavelength (6) times frequency (3)
The the exact mass is 24.740% (according to the internet) but I’d say that it’s 25
