Describe the formation of auroras and explain why they can only be seen at high latitudes.

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 %.

[bws.05]where would uncharged particles be most likely found in an atom? o on the electrons o inside the protons o inside the nucleus outside the nucleus

Suggest 3 different reasons why there is an ageing population in the uk .