Environmental Science Milestone 3.docx. ALL QUESTIONS WITH ANSWERS

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Which statement about agroecosystems is true?  Monoculture decreases the use of chemicals.  Agriculture does not change the natural environment.  Agroecosystems have low species and hab... itat diversity.  Agroecosystems are similar to natural ecosystems. CONCEPT Agriculture Impacts 2 Of the options below, which is an example of a point source of water pollution?  Acidic runoff from abandoned mines contains lead and mercury that saturate the soil.  A factory’s wastewater pipe opens directly over a nearby river.  Landscapers' fertilizers and pesticides are sprayed on the lawns of a neighborhood.  Litter and pet waste are left on a city’s beaches. CONCEPT Water Pollution 3 Which of the following is true about the ecological footprints of the U.S. and developing countries?  The U.S. standard of living requires 15 hectares of land per person, but a developing nation’s standard of living requires 10 hectares of land per person.  The U.S. standard of living requires two hectares of land per person, but a developing nation’s standard of living requires 0.2 hectares of land per person.  The U.S. standard of living requires five hectares of land per person, but a developing nation’s standard of living requires 0.5 hectares of land per person.  The U.S. standard of living requires 10 hectares of land per person, but a developing nation’s standard of living requires one hectare of land per person. CONCEPT Human Population Growth 4 Which of the following is NOT a reason for malnutrition and undernourishment in the world?  Some regions are overpopulated.  Not enough food is produced to feed everyone on Earth.  Floods and droughts disrupt food production.  Poor countries have limited purchasing powe [Show More]

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