13. When the candle was lighted, it melted into liquid and became solid again after few
seconds or in a minute. What causes these changes?
1. presence of heat II. presence of oxygen
III. absence of heat IV, absence of oxygen
A. I, II and III
C. I and II
B. I and IV
D. All of the above
Answers & Comments
Answer:
A po yung sagot po
Explanation:
Hope help's!