What is the difference between a total fertility rate of 2 and a total fertility rate of 2.35 in terms of global population?

Food can come from sustainable or unsustainable resources. why has the united nations suggested that bugs could be a better source of food than animals like pigs or cattle?

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 %.

This word for a bug or malfunction was popularized in the 1962 book into orbit by the mercury astronauts