2. The non-segregated garbage in Sampaguita Street was uncollected for several days. What will be the impact of this problem to community?
A. The waste can be used as fertilizer to plants.
B. The bad odor will allow pests and germs to multiply and cause illnesses. C. The kids will be happier playing near the garbage pile.
D. The surrounding will look good.

3. How can people reduce and control air pollution?
A. Use alternative means of transportation like bicycles.
B. Continuously use coal to power factories and plants.
C. Use gas-fueled transportation everyday.
D. Burn dried leaves and twigs to prevent accumulation.

4. Which of the following kills drinking water contaminants?
A. Filtration of water using sand and gravel
B. Boiling water at least three minutes
C. Leaving the water under the sun for three minutes
D. None of the above​