16. It means to stay on top of the water. *
1 point
a. porous
b. sink
c. non- porous
d. float
17. Which of the following materials have the ability to sink in water? *
1 point
a. metal spoon
b. wood
c. plastic sheeet
d. twigs
18. How should non-decaying wastes be disposed? *
1 point
a. by composting
b. by reusing
c. by recycling
d. both B and C
19. Which of the following show proper waste disposal? *
1 point
a. throwing garbage to the sea
b. putting all waste materials in one container
c. throwing leftover foods in the drainage canal
d. segregating waste into decaying and non-decaying materials
20. The tool used by carpenters to strike and pound a solid material. *
1 point
A. Paper
B. Scissors
C. Bat
D. Hammer​