The global movement of air that transports heat and moisture and explains the climates of different regions is called:

The primary agent of contact metamorphism is

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 %.

Why is terracing used in southeast asian agriculture?