Which situation shows the presense of oxygen in a material? I. Lighting of candle
II. Burning of fuels
III. Combusion of engines
IV. Putting off a lighted candle

A. I, II and III
B. I and IV
C. I and II
D. All of the above

Ahistorian has discovered a letter written by an early roman emperor. she translates the letter and discovers that it contains orders to a general before a battle. she works to determine when the letter was written to figure out which battle the letter references.the historian in the passage is most clearly demonstrating which historical thinking skill? a. identifying causes and historical contextb. thinking chronologicallyc. making and evaluating arguments and interpretationsd. analyzing historical sources

Which of the following does not describe europe after that fall of the western roman empireh

What was one of the causes of war war two what was one of the causes of the war of 1812