Both valves are closed in the photo the spark plug hasn’t fired yet what stage of engine operation is represented by this photo

The use of a beat or a rhythm to remember something is

This is an ap world history question. i am working on a worksheet which has a vent diagram with each circle labeled either us or byzantine economy. the middle is the similarities. can someone explain to me the similarities and especially the differences between the two?

Typically, passing a dual enrollment course in english would earn a student: a. weighted credit on college transcripts. b. both high school and college english credit. c. high school social studies credit. d. credit for two high school english classes