Which type of rock is formed from the cooling and hardening of molten material?
a. igneous
b. sedimentary
c. metamorphic

How would i answer this in a exam. orange - sea temperature is over 27 red arrows - tropical storm routes

Which of the following is defined as combinations of soil particles that vary in size and shape?

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 %.