The difference between visible light and gamma rays is that
a. the amplitude of visible light is greater. c. they travel through a different medium,
b. the speed of gamma rays is greater.
d. the frequency of gamma rays is greater.

Write a short paragraph explaining how to determine what information to put into a slide show presentation.

Which choice is a major detail from paragraph two? a) the great wall is a large network of several walls and towers. b) the great wall looks like a long wall snaking its way across china. c) the great wall was constructed over hundreds of years beginning in 221 b.c. d) the great wall construction encouraged several independent kingdoms to unite.

Use a pronoun to refer to two or more singular antecedents joined by or or not