Environmental Science Unit 3 - 24 Questions

24 questions were answered correctly. 1 Choose the true statement about global food production.  Food production is dependent on suitable land, temperature and precipitation and soil health.  Cash crops include only non-food crops such as tobacco and rubber.  Many different crops are grown around the world, but rice is the most dominant.  Examples of subsistence crops include tea and coffee. CONCEPT 2 Which of the following is true about water supply and demand?  People waste less water than they once did.  Water supply is fixed and unchanging.  The amount of available clean water is increasing.  Water use is growing twice as quickly as the population. CONCEPT 3 Choose the statement that is NOT true about water availability on Earth.  Household consumption of freshwater is greater than industrial consumption.  Water use has been growing at twice the rate of population.  One-fifth of the Earth’s population lives with a scarcity of water.  Agriculture uses the majority of available freshwater. CONCEPT 4 Of the options below, which is an impact of urban sprawl?  Less water consumption  Lower home prices  Decreased traffic  Loss of farmland CONCEPT 5 Of the options below, which is an example of a non-point source of water pollution?  Fertilizer and pesticides run off from the community’s two golf courses.  A limousine company maintains a fleet of 15 cars in a garage.  A factory discharges its wastewater directly into the nearby river.  A homeowner fails to repair a deteriorating septic tank. CONCEPT 6 Anna eats the last pickle for lunch. She decides to use the empty pickle jar to hold her paint brushes. Which waste disposal method is Anna practicing?  Reuse  Compost  Combustion  Recycle CONCEPT 7 Which of the following is currently increasing because of human population growth and its associated impacts?  Freshwater supplies  Non-renewable resources  Land available for crops  Sea levels CONCEPT 8 Which statement about agriculture impacts is false?  Agroecosystems do not allow a natural progression of multiple species and ecological succession.  Agroecosystems try to control a certain number of species in a limited area.  Fewer pesticides are used when monoculture is practiced.  Monoculture can threaten human health because of increased chemical use. CONCEPT 9 Which statement describes the environmental impact of developing countries?  The standard of living in these countries requires five hectares per person.  These countries have an efficient food distribution system.  They use the majority of the world’s fresh water supply.  They have limited buying power to import foods. 10 Which of the examples below describes an effort to address urban sprawl through urban green space?  The city converts an old factory downtown into affordable housing for young people.  A small city maintains a park and forest within its downtown as new businesses build around it.  The city razes a former dry cleaners downtown, cleans up the chemicals in the soil and builds a sculpture garden.  A new restaurant is constructed on a lot on the edge of town, bypassing several vacant lots within the city. 11 Lillian always locks the cupboard in which she keeps the chemicals for the swimming pool. She has a curious four-year-old and she knows he wouldn't recognize the pretty colored vials as poison. One day, the pool maintenance person returned to his truck for a moment, and Lillian saw her dog snifÏng at the open cupboard. Quickly, Lillian called the dog to her side and she scolded the maintenance person for leaving the open cupboard unattended. Lillian is most concerned about the which of the following factors of the chemicals inside?  Toxicity  Corrosivity  Reactivity  Ignitability 12 John and Cheryl want to avoid using pesticides as much as possible on their farm. They rotate crops to disrupt insect mating cycles and introduced some common pests’ natural predators into their fields. Their neighbor is trying to keep pests from their crops and gardens too, so they ask John and Cheryl for advice. Of the options listed below, which suggestion is the most effective method for environmentally friendly pest control?  Plant aromatic herbs to serve as a natural deterrent to pests.  Use only genetically modified seeds.  Use compost and other organic farming methods to provide pest protection.  Plant several plots of vegetables so one pest can’t destroy all of them. 13 A septic tank was not installed properly and waste water has risen above ground and flows toward a nearby lake. Which of the following is NOT likely to be a result of this occurrence?  Algal growth in the water will increase, eventually decreasing the oxygen supply of the lake's fish.  The waste water will be diluted before it reaches the lake.  The polluted water can break a link in the aquatic food chain.  Drinking the lake water can cause disease. 14 People in developed countries consume approximately __________ of all meat.  90%  96%  80%  76% 15 Choose the FALSE statement about undernourishment and malnourishment in the world.  Some areas have more food than they can use while other areas don't have enough food.  There is enough food produced on the planet to meet the population’s nutritional needs.  Producing more meat is the most effective way to increase food access.  Deforestation can create more arable land to feed more people. 16 Select the FALSE statement about the benefits and impacts of dams from those listed below.  A dam can create new ecosystems, which increase biodiversity.  A dam can provide a dependable water supply for urban or industrial use.  A dam can provide hydroelectric power, which is environmentally safer than burning fossil fuels.  A dam can provide a means of irrigation to a region with poor or unpredictable rainfall. 17 Select the example that describes an environmental cause of famine.  A corrupt government is overthrown and the country descends into violence.  An area is flooded after heavy rains and all the crops are lost.  Local farmers lack the technical expertise to develop new cultivation strategies.  A country's population continues to increase but incomes decrease steadily. 18 Choose the true statement about water on Earth.  Humans can easily access a large percentage of the Earth’s freshwater.  Oceans cover about 50% of the Earth’s surface.  Freshwater is found in glaciers, ice, rivers, lakes and below ground.  Oceans contain approximately 90% of the water on Earth. 19 Select the true statement about efforts to address water pollution in the United States.  The United States Army Corps of Engineers cannot issue permits that impact wetlands.  The amendments to the Clean Water Act outlined policy and enforcement strategies.  States set their own water quality standards for the public water supply.  Individual states are required to determine what waters are impaired by point source pollution. 20 Which of the following is NOT a consequence from the runoff of fertilizers into the water supply?  Oxygen levels in water increase.  Fish die due to toxins.  Tainted drinking water leads to human disease.  Algal blooms take over a body of water. 21 Which of the following is NOT a way humans negatively affect groundwater?  Humans poison the water with chemical runoff.  Humans build structures with impermeable surfaces.  Humans build dams to provide water for agriculture.  Humans lower the water table. 22 Which of the following is an example of a regenerative agricultural practice?  Timothy uses natural pesticides to keep his crops healthy.  Quinton practices no-till farming to maintain the fertility of the soil.  Sadie uses natural processes to stimulate the formation of new topsoil.  Sally rotates crops regularly to help prevent pest outbreaks. 23 Toxins from chemicals in plastic are being released into the air, causing pollution. Which type of waste disposal most likely caused this phenomenon?  Combustion  Ocean dumping  Composting  Landfills 24 Choose the statement about human population growth that is NOT true.  A planet three times the size of Earth would be needed to sustain the current population if all people lived at the United States’ standard of living.  Most population growth is occurring in developed countries.  To meet basic survival needs, people in poor countries often degrade the environment.  The U.S. standard of living requires land space of over nine football fields per person.