Chapter 9: Endangered ecosystem Section A 1. Which of the following ar compassionate activities that decisionanger on the ecosystem? State true or false. a. unfit planning of development[] b. Sustainable agricultural methods[] c. Illegal chase[] d. industrial activities[] e. Deforestation[] f. Gardening[] g. Burning of domestic go off[] h. Coal-fueled power stations[][8m] 2. Eutrophication Rearrange the chronological sequence of events in eutrophication by writing the numbers at the end of the statement. a. Bacteria employ up oxygen (BOD high)[] b. The pond is cover with algae (algal bloom)[] c. The work of excess manure (organic fertiliser) into the pond [] d. final stage of algae[] e. aquatic organisms die[] f. Decomposition by aerobic bacteria[][6m] learning : For oppugn 3 and 4, choose the correct answer in the box seat given. 3. Green house movement [pic] ? The glasshouse effect is the phenomenon of an collaborate on in the .. of the Earths atmosphere. ? The babys room effect is an primary(prenominal) subjective process. Without it, the Earth would be too cold for the natural selection of living organisms.
? Examples of glasshouse gasconadees such as , chlorofluorocarbons (CFCs) ,., .. .. and ozone. ? These greenhouse gases, peculiarly carbon dioxide, trap and absorb in the atmosphere, cause a rise in the temperature of the atmosphere. ? As the concentration of greenhouse gases rises, the greenhouse effect become more pronounced. ? The layer of gas acts as insulator to preve! nt the heat energy from creation transmitted to space. ? As a result, the Earth temperature increases causing orbiculate warming. ? The ostracise effects of global warming: 1. ......... 2. Change in fall patterns 3. Change in species 4. Reduced food sources 5. Health...If you indigence to demoralise a full essay, order it on our website:
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