An instrument that measures light from bodies in space is called what?

Brian's school locker has a three-digit combination lock that can be set using the numbers 5 to 9 (including 5 and 9), without repeating a number. the probability that the locker code begins with a prime number is %. the probability that the last digit of the locker code is an odd number is %.

What was on result of the potato famine

Plzz on what physical process is responsible for the creation of volcanoes, earthquakes and ocean trenches at the plate margins?