Three students are moving a total of 90-N cartons of books from the floor to a platform with a height of 2 m. Student (A) moves 11 cartons in 6 minutes. Student (B) moves 11 cartons in 5 minutes. While Student C moves 11 cartons in 4 minutes. Which student does more work on her cartons?

Explain the difference between each pair of concepts. a. frequency and relative frequency b. percentage and relative frequency a. select the correct choice below. a. frequency is the total number of observations in a data set. relative frequency is the number of times a particular distinct value occurs. b. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of a value to the total number of observations. c. frequency is the total number of observations in a data set. relative frequency is the ratio of the number of times a particular distinct value occurs to the frequency. d. frequency is the number of times a particular distinct value occurs. relative frequency is the ratio of the frequency of two different values.

On a geologic map, if the contacts between sedimentary rock units form a bull’s-eye pattern of concentric circles, with the youngest unit in the center, the underlying structure is a(n)

Explain what will happen if decomposers were apsent from a forest ecoysystem.