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1. Which of the following is an example of a man made ecosystem?
A. Zoo B. Grassland C. Rain Forest D. Hill's
2. Which of the following is a natural ecosystem?
A. Corn Field B. Dam C. Swamp D. Zoo
3 Which is an example of a biotic factor in an ecosystem?
A. Decomposers B. Rocks C. Water D. Temperature
4. This is the shady lower of the part of a rain Forest.
A. Canopy B. Floor C. Sub Canopy D. Understory
5. What is the main reason for the diminishing coral reef area in the Philippines?
A. Climate Change B. Deforestation C. Dynamite Fishing D. Erosion
6. This a type of circular reef system where it is roughly sorrounded w lagoon?
A. Atoll B. Barrier Reef C. Fringing Reef D.Lagoon
7. Coral reefs are made up of __
A. Algae B. Limestone C. Rocks D. Sand
8. Which of these is called the 'Rain forest Sea' ?
A. Beach B. Coral Reef C. Estuary D. Lagoon
9. An environment where both living and non-living exist continuously.
A. Ecosystem B. Coral Reef C. Rain Forest D. Corn Plantation
10. Which is a function of mangrove roots?
A. Filter out sands B. Build-up shady parts C. Absorb and store sugar from the water D. Remove impurities and pollutants from water
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