Answer:

1.The site should be on elevated ground.It should have slope towards front street to afford good facility of drainage. Sites nearer to ponds ,pools of water,water logged areas must be avoided as they remain in damp condition

2.A dam is usually constructed across a river to create a reservoir in the valley behind by storing the water that flows into it naturally. ... Instead, a dry construction pit is formed on one side of the river, leaving the other side open for the water to flow through.

3.The public is reminded that the entire Taal Volcano Island is a Permanent Danger Zone (PDZ), and entry into the island as well as into the high-risk barangays of Agoncillo and Laurel must be prohibited due to the hazards of pyroclastic density currents and volcanic tsunami should strong eruptions occur.