9. How do some organisms make use of mangrove swamps?
A venue for food production
B. source of food and shelter
C. space for recreational activities
D. for domination over other species
10. What could be done to preserve mangrove ecosystems?
A. Cultivate vegetables in mangrove areas.
B. Cut down mangrove trees for fuel and charcoal.
C. Plant new mangroves in deforested coastal areas.
D. Bring new species of animals to increase biodiversity.​