Which of these is an example of ex-situ conservation?
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National Park
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Biosphere Reserve
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Wildlife Sanctuary
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Zoo
What does "sustainable development" emphasize?
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Balancing environmental, social, and economic needs
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Economic
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Industrialization only
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Environmental protection only
Which environmental problem is caused by excessive groundwater extraction?
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Land subsidence
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Acid rain
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Ozone depletion
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Coral bleaching
Which country has the largest tropical rainforest area?
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Nepal
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Canada
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India
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Brazil
Which ecosystem has the highest productivity per unit area?
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Desert
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Tundra
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Grassland
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Coral Reef
What percentage of Earth's water is freshwater?
Which gas is mainly responsible for depletion of the ozone layer?
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Oxygen
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Carbon Dioxide
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Chlorofluorocarbons (CFCs)
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Methane
Which process converts atmospheric nitrogen into usable compounds for plants?
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Nitrogen fixation
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Photosynthesis
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Respiration
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Fermentation
Which of the following is a non-renewable resource?
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Hydropower
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Solar energy
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Wind
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Coal
Which country emits the largest total amount of carbon dioxide currently?
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India
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Germany
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Brazil
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China
