5. Which is NOT true about milkfish? a. carnivorous feeding habit
b. rapid growth rate
c. shiny and with attractive appearance d. tolerance of wide range of salinity

6. These are the reasons why many people culture tilapia.
a. It is easy to raise, slow-growing fish, can survive any bodies of water and environment.
b. It is easy to raise, slow-growing fish, can’t survive any bodies of water and environment.
c. It is easy to raise, fast-growing fish, can’t survive any bodies of water and environment.
d. It is easy to raise, fast-growing fish, can survive any bodies of water and environment.

7. Why is mud crab fattening the most suitable method for small scale aquaculture?
a. Cannibalism is dramatically increased. b. Lower survival rate for fattening. c. Fattened crabs can be stocked at lower densities.
d. The period between investment and returns is short.

8. Although fish culture provides many benefits to people, it also poses adverse impacts on environment, people and the community. Which of these impacts is caused by importation of foreign species for farming?
a. decline in local food crops
b. displacement of native species
c. loss of mangrove ecosystem
d. water and soil salinization

9. Population numbers of some wild stocks of some species are in danger of being depleted due to overfishing. How does fish farming help in the preventing the depletion of wild stocks from the sea?
a. Fish farming provides more hiring possibilities and more jobs.
b. Fish farming provides extra income to supplement the earnings of the family.
c. Fish farming provides alternative sources instead of fishing the same species from the sea.
d. Fish farming buffer zones that protects the rest of the sea from pollution from the land.

10. The culture of this fish in brackish water ponds and pens is an age-old and traditional practice in many tropical countries. Due to its non – cannibalistic nature, stocking density can be high in culture conditions compared to other finfishes.
a. Catfish
b. Groupers
c. Milkfish
d. Tilapia​