Question 8 (2 points) The graph below shows the changes in the temperature of ice when it is heated from -20°C to 100°C.
100
D E
80
60
Temperature (°Celsius)
40
20
0
B
С
-20/A
Addition of heat over time
2010 FLVS
Based on the graph, which of these conclusions is correct? (2 points)
Оа
Heat is not added in portions BC and DE
Oь
Heat is not added in portions AB and CD.
Change of state takes place in portions BC and DE
Ос
Od
Change of state takes place in portions AB and CD.