B. mutualism
32. Coral reefs are beneficial to marine life. In what way does it show in the
following
instances ?
1. provide rich sources of marine food
Il protect the coastal areas from strong waves
III. provide passage for strong currents to coastal areas
IV. serve as a breeding ground of fishes and other forms of marine life
A. I and II B. II and III C.I and IV D. lll and IV
33. Coral reefs are important to man and other marine organisms How can we
help protect them?
A. collect corals
B. clean coral reefs
C. prevent dynamite fishing
D. throw oil into waterways
34. Why are corals very important to marine life?
A. They are the habitat of some marine animals.
B. They make the oceans and seas look blue.
C. They filter and purify the water.
D. They make the seawater salty.​