Which of the following is important if an organism is to become a fossil? A. rapid burial and soft parts
B. rapid burial and hard parts
C. hard parts and slow burial
D. soft parts and slow burial​

What is the result of the greenhouse effect? a. heat is deflected from the atmosphere. b. heat is released from the atmosphere. c. heat is kept in the atmosphere. d. plants are able to grow in the tropics where the air is the heaviest.

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 %.

Pollution from one country can affect another. for example, south korea is especially affected by pollution and dust storms that come from