THE SYSTEM RESPONSIBLE FOR DEFENSE AGAINST DISEASE AND HARMFUL SUBSTANCES IS THE CIRCULATORY SYSTEM ENDOCRINE SYSTEM IMMUNE SYSTEM EXCRETORY SYSTEM SKELETAL SYSTEM
Question ECOL C-100 Final Exam 1. The system responsible for defense against disease and harmful substances is the circulatory system endocrine system immune system excretory system skeletal system 2. Human inputs of outdoor air pollutants occur mostly in rural areas in the mountains along the oceans in urban areas in the deserts 3. Of the following materials the MOST difficult to recycle is glass plastic paper aluminum cardboard 4. Which of the following is the LEAST desirable from an environmental standpoint? repair reduce reuse compost recycle 5. Photochemical smog is formed when primary pollutants interact with sunlight water vapor sulfur dioxide oxygen carbon 6. Four of the following are means of transmitting the HIV virus from person to person one is not such a means. Choose the one that is not. unsafe sex sneezing and coughing exposure to unsafe blood sharing needles by drug users infected mothers passing the virus to offspring before or during birth 7. Most of earth’s weather occurs in the troposphere thermosphere mesosphere stratosphere tropopause 8. Approximately 70% of the U.S.’s electronic waste (ewaste) ends up buried or incinerated recycled shipped to India shipped to China shipped to Africa 9. Which of the following is NOT a major recent trend in urban population dynamics numbers and sizes of urban areas is growing very fast poverty is becoming increasingly urbanized mostly in developing countries urban growth is much lower in developed countries than developing countries proportion of world population living in urban areas is increasing decline in hypercities 10. Chlorofluorocarbons are nontoxic corrosive odorous flammable reactive 11. Which of the following is not a harmful effect of plastic bags spread malaria kills plants kills animals kills marine animals none of these 12. Compost is MOST accurately described as manure landfill byproducts pure garbage soil conditioner and organic fertilizer humus 13. When more roads are built more cars are sold. Then more roads are built. This interaction exemplifies a(n) positive feedback loop negative feedback loop synergistic interaction antagonistic interaction negative synergistic interaction 14. The MOST energy-efficient beverage container on the market is reusable glass recyclable aluminum stainless steel recyclable plastic carton 15. In cultural eutrophication fish die from acid deposition suffocation due to depletion of dissolved oxygen toxic substances in the water increased sediment reducing habitats loss of space 16. Typical rain in the eastern US is at least _____ times more acidic than what normal precipitation should be 2 5 10 20 50 17. Refillable glass and PET beverage containers can be used ____ times before they become too damaged and need to be recycled. 3 5 7 10 15 18. A good indicator of water quality is the number of ducks fish turtles coliform bacteria protozoa 19. The Lyme disease bacterium is passed onto humans directly from foxes deer white mice filed mice ticks 20. ________relates to the amount of a potentially toxic substance as it passes through food chains and webs. Toxicity Biomagnification Persistence Response Dose 21. What do all volatile organic compounds have in common? All are carbon based. All are produced from manmade sources. All are emitted fro processing and/or burning fossil fuels. All are colorless odorless reactive gases. All are naturally occurring and odorless gases found in rocks and vegetation. 22. Environmentalists say that the best way to handle soft drink and beer containers is to use landfills use paper bottles use stainless steel cans use reusable glass bottles and PET containers and recycle bury them 23. The five main types of hazards include all of the following EXCEPT biological hazards natural hazards economic hazards physical hazards chemical hazards 24. The effects of ozone depletion on humans includes all of the following EXCEPT more cataracts suppression of immune system more brain cancers worse sunburns more skin cancers 25. The atmospheric layer containing 75% of the mass of earth’s air is the thermosphere mesosphere stratosphere troposphere tropopause 26.
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