ACTIVITY 4. Directions: Read each item carefully. Circle the letter of the correct answer. 1. Which is NOT found in the coral reef ecosystem? A. Fish B. Corals C. Coral reefs D. Trees 2. Which practice causes destruction of coral reef ecosystem? A. Excessive fishing C. Dynamite fishing B. Pollution and oil spill D. All of these 3. Which of the following destroys the balance of an ecosystem? A. Planting more trees C. Disruption of nutrient cycle B. Recycling materials D. Conservation of natural resources 4. What causes deforestation? A. Reforestation B. Contour farming C. llegal logging D. Habitat restoration 5. The following are the ways of restoring habitats except one. Which is it? A. Reforestation B. Mangrove rehabilitation C. Building man-made sanctuaries D. Buying products made from the body parts of animals 6. Which is the adverse effect of deforestation? A. cause flooding in lowlands : C. increase in atmospheric humidit B.contributes to greenhouse effects 'D. paves way for human settleme 7. How does the human population affect the ecosystem? A. Animals are conserved. B. Plants and animals remain in the ecosystem. C. Forests are cleared to give way to large subdivisions. D. Plants are conserved for the need of the people 8. The fisherman in the barangay use dynamites in order to have a big catch. practice continues, what do you think will happen to the marine resources A. Fishes will multiply fast. C. Marine life will decrease. B. Marine life will increase. D. The corals will multiply.​