13
The YES-O Club hold on to their advocacy to plant trees on the areas that
were cut because of the kaingin system in their barangay. What are the
harmful effects of bald mountains if not replaced through reforestation?
A. Denuded mountains provide fresh air.
B. Native animals love to stay in the denuded mountains.
C. Soil erosion is prevented.
D. Water levels are severely affected.
14.
When the surrounding air is blanketed with smoke from factories and
motored vehicles, the harmful effect of this would be...
A. The air becomes polluted.
B. The air becomes fresh.
C. The air becomes unpolluted.
D. The air becomes clean.
15. The materials are harmful to the environment except one?
A. Using paper bags when going to the market.
B. Throwing garbage properly.
C. Throwing plastic bottles into the river.
D. Using pesticides on the farm.
16. When water is polluted, which could be the result?
A. Fishes are poisoned and killed.
B. Plants get healthier.
C. Water is safe for drinking.
D. It will attract more tourists.
17. How can you prevent/minimize water pollution?
A. Avoid throwing garbage near water resources.
B. Cut down trees.
C. Throwing garbage anywhere.
D. Practice improper waste disposal.