Test
Practice Exam
Este test tiene tipos de pregunta que se abren en el reproductor de siempre.
Preguntas del test (27)
1Which of the following human populations would be expected to grow fast after a delay?
- AThe population in an old people's residential area
- BA population of mixed age and sex
- CA population consisting predominantly of young children
- DThe population of the United States
2The ‘regulation’ of a population refers to:
- AThe means by which its size is determined.
- BThe means by which its density is determined.
- CThe effect of predation on the population.
- DA tendency to increase in size when small and decrease when large.
3The momentum of population growth refers to
- Aa population's continuing to grow for a period after a stable age structure has been imposed.
- Ba population's continuing to grow for a period after no-growth combinations of birth and death rates have been imposed.
- Ca population's continuing to grow for a period after a demographic transition has occurred.
- Da population's continuing to grow for a period after the carrying capacity has been reached.
4On a global scale, agriculture consumes what percentage of available supplies of fresh water?
- A40 percent
- B50 percent
- C60 percent
- D70 percent
5Which of the following would NOT reduce degradation of soil by agriculture?
- AIncorporate farmyard manure and animal wastes into the soil.
- BIncorporate crop residues into the soil.
- CStop the practice of alternating years under cultivation with years of fallow.
- DReturn the land to grazed pasture or rangeland.
6 Which of the following gases is an important contributor to the Greenhouse Effect?
- AHydrogen sulfide
- BNitrogen
- CMethane
- DMercury vapor
7Acid rain is caused by
- Abicarbonate ions absorbed by water in the upper atmosphere.
- BSO2 and NOx released during Earthquakes.
- Chigh temperatures during El Niño events.
- DSO2 and NOx from burning fossil fuels.
8Smog is produced by
- Apollen interaction with increased carbon dioxide
- Bwater droplets produced by burning of fossil fuels.
- Cinteraction of ozone with gaseous hydrocarbons.
- Dinteraction of methane with NOx
9Intensive livestock farming pollutes the natural environment because:
- AIt liberates excessive amounts of ozone
- BIt contributes excessive heat that enhances the greenhouse effect
- CIt creates a problem to dispose of dung and urine.
- DIt stimulates biological nitrogen fixation.
10 Oil spilled into the sea close to the coast from tankers can be disposed of without harm to wildlife by
- Aburning it
- Bspraying it with detergents
- Cskimming it off
- Dno known method
11A commercial unit for fattening 10,000 pigs produces as much pollution as a town of how many inhabitants?
- A180
- B1,800
- C18 000
- D180 000
12 What are the main factors determining productivity of ecosystems?
- AThe availability of nutrients
- BThe climate
- CWether it's highly populated or not
- DThe diversity of species
13Ultimately most of the energy we use today comes from [blank_start]the sun.[blank_end]
- Athe sun.
14Which of these ISN'T a way to use the sun's energy?
- APhotosynthesis
- BBiomass and Fossil fuels
- CWind and river movement
- DTidal
15What are the other forms of energy?
- AGeothermal
- BTidal
- CNuclear
- DHeliocentric
16Most energy sources fall into two categories: [blank_start]Renewable[blank_end] and [blank_start]non renewable[blank_end].
- ARenewable
- BVariable
- Cnon renewable
- DMobile
17The most obvious way to reduce the environmental impacts of energy use is to have [blank_start]more efficient production[blank_end] and [blank_start]less wastage during and after[blank_end] production.
- Amore efficient production
- Bless wastage during and after
18Using closed stoves instead of open fires or converting wood to charcoal is an example of energy saving in developed regions. True or False?
- AVerdadero
- BFalso
19The efficiency of electrical generation in the developing world is of [blank_start]5 to 6 units[blank_end] to make one. In the developed world, it is [blank_start]3 to 1.[blank_end]
- A5 to 6 units
- B3 to 1.
20What is co-generation of power?
- Ausing the hot water wasted in the generation process to create more energy.
- Bcombining 2 different types of energy as one
- Csame source, but 2 different units
21 Renewable energy use is most significant in [blank_start]developing countries[blank_end] because of their [blank_start]biomass[blank_end] consomation.
- Adeveloping countries
- Bbiomass
22Which source of energy makes the largest contribution to climate change?
- AFossil Fuels
- BWater
- CNuclear
- DBiomass
23In addition to the environmental benefits of renewable energy, what other benefits do they have?
- AMost equipment is small, allowing faster construction.
- BThey can be built in factories which makes them more cost-efficient.
- CSmall scale = short time between design and operation
- DThey are inexpensive to make
24What are some of the drawbacks with renewable energies?
- ATheir variable nature
- BNot all renewable sources are appropriate for all types of energy need
- CThey are expensive to produce
- DThey aren't sustainable
25Besides the natural endowments what is also necessary for renewables to become a bigger part of our energy futures?
- APolitical will
- BGovernment and industry support
- CPopular consensus
- DSocial infrastructures to support it
26An increase in efficiency is likely to meet the increase in our energy that will most come in the future as economics continue to increase?
- AVerdadero
- BFalso
27Sweden government versus environmentalists about hydroelectricity development is a great example of the tension that often exists between those looking to expand renewable energy and conservationists who want to protect wildlife.
- AVerdadero
- BFalso
Información
- Descripción
- Test sobre Practice Exam, creado por Mathilde Fauteux el 30/11/2015.
- Autor
- Mathilde Fauteux
- Idioma
- English
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