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CAMARINES NORTE NATIONAL HIGH SCHOOL PARALLEL ASSESSMENT WEEK 4 & WEEK 5 Name: _______________________Section: _____________Date Submitted: _________ Score: ____ TEST I. Multiple Choice. Read and answer the following questions carefully. Write the letter of the correct answer on the space provided before each number. _______1. It is directly linked to other environmental issues, such as acid rain and eutrophication. a. Climate Change c. Water pollution b. Air pollution d. Polar ice caps _______2. The process of removing or clearing of a forest to include the cutting of all trees, mostly agricultural or urban use. a. Kaingin c. Illegal logging b. Deforestation d. Greenhouse effect _______3. It refers to the variety of life in an ecosystem. a. biodiversity c. community b. biosphere d. population _______4. The average temperature of the earth’s atmosphere may rise because of______. a. acid precipitation c. greenhouse effect b. water pollution d. wildlife depletion _______5. The following are effects of deforestation EXCEPT for a. decrease in wildlife biodiversity c. forest fires b. floods d. soil erosion _______6. It makes the yellowing of leaves of plants and loss of nutrients from the soil. a. acid rain c. Eutrophication b. acid precipitation d. Siltation _______7. It represents the average number of individuals per unit of area or volume a. Volume c. Population density b. Population d. Population distribution _______8. A gas produced from burning of coals in factories and power plants. a. Sulfur dioxide c. Nitrogen b. Carbon monoxide d. Carbon dioxide _______9. Suppose 100 ants live in an eight sq.m. plot of grass. What would be the population density of the ants? a. 10 ants per sq.m c. 20 ants per sq.m b. 12.5 ants per sq.m d. 25 ants per sq.m _______10. It is the disappearance of huge members of species in a relatively short period of time. a. Endangered species c. Threatened species b. Extinction d. Mass extinction _______11. It refers to environmental conditions that keep a population from increasing in size and help balance ecosystem. a. carrying capacity b. limiting factors c. population d. extinction _______12. It is the maximum population size an environment can support. a. carrying capacity b. limiting factors c. population d. extinction _______13. Which of the following is NOT a principal cause of deforestation? a. illegal logging c. kaingin farming b. forest fires d. burning of garbage _______14. It refers to a group of organisms of the same species living in a certain place. a. carrying capacity b. limiting factors c. population d. extinction _______15. If 40 frogs live in a 2 square meters area, what is the population density per square meter? a. 20 b. 25 c. 30 d. 40 _____________________________________ Signature of Parent Over Printed Name

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