3. Which of the following issues s is the main reason that causes the temporary closure of Boracay island?
a.Overpopulation
b.Excessive land use
c.Ecological water issues
d.Exploitation of human resources

4. Which of the following causes algal bloom and existence of fecal coliform in Boracay island?
a.Improper disposal of solid wastes
b.Tourist negligence of sustaining beauty of the place
c.Disposal of untreated wastes and runoffs directly into the sea
d.Failure of the local officials in regulating the tourist arrival

. Which of the following causes tourists influx in Boracay Island?
a.Crystal azure waters and powdery white sand
b.Cultural diversity
c.Greed for profit and business
d.Weak control of local officials on tourist arrival