13. Which is called as the "lungs of the planet"?
A. Mangrove
C. swamps
B. Rainforest
D. coral reefs
14. Which of the following serves as the source of food and protect coastlines
from storms and erosion?
A. Rainforest
C. coral reefs
B. Mangrove
D. swamps
15. Which serve as the first line of defense for coastal communities?
A. Rainforest
C. mangrove swamps
B. Corals
D. reefs
16. Which of the following statements is NOT true?
A. Rainforests produce oxygen and clean the atmosphere.
B. Mangroves provide essential habitat for thousands of species.
C. People are allowed to collect corals for ornamental purposes.
D. Coral reefs provide habitat and nursery grounds for important species of
fish.
17. Which of the following is a threat to coral reefs?
A. Oil spills
C. sewage
B. Pesticides
D. all of these
18. Which of the following refers to species that no longer exists?
A. Habitat
B. extinct
C. resources D. conservation
19. Which of the following will endanger the coral reefs?
A. Climate change
C. pollution
B. Overfishing
D. all of the above
20. Which is NOT an importance of rainforests?
A. It helps stabilize the world's climate.
B. It reduces greenhouse effect.
C. It helps maintain the water cycle protects against flood and drought.
D. It helps provide habitat for important species of fish.
21. In what part of the rainforest has a thin layer of fallen leaves and branches?
A. Canopy B. subcanopy C. floor forest D.understory
For items 22-25, enumerate the four (4) levels of Rainforest.
22.
24.
23.
25​