Which event happened first in earths evolution on the geologic time scale?

The current is like a stream or river in the ocean true or false

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 %.

How does the bare soil surface type affect the amount of runoff