III - Encircle the letter of the correct answer. 11. Glass and porcelains should be handled with care because it has a property which is
A. malleable
B. hard
C. elastic
D. brittle
12. The characteristics of a matter that can be readily observed without changing its composition is known as
A. physical change
B. chemical change
C. climate change
D. No change
13. The buming of a material is an example of
A. physical change
B. chemical change
C. climate change
D. No change
14. The following are present in the fire triangle except for one.
A. Oxygen
B. heat
C. fuel
D. carbon dioxide
15. Fish kill is a result of
A. heat
B. low temperature
C. absence of oxygen
D. presence of oxygen​