What is Kitchener doing to reduce its carbon footprint

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 %.

There is only one climate type in motion across the world at a time

The ozone hole is at its biggest each year in the ? hemisphere in the ? season.