IPCC estimate, fossil-fuel emissions would rise to about 16 billion by:

1. 2030
2. 2040
3. 2050
4. 2060
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Answer: C
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Velociraptor is a kind of:

1. Fruite
2. Automobile
3. Plant
4. Dinosaur
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Answer: D
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WHO estimates that particulates in Mexico City's air contribute to _____ deaths each year:

1. 6,000
2. 6,200
3. 6,400
4. 6,600
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Answer: C
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One of the following is the Water Rich country:

1. Kuwait
2. Saudi Arabia
3. UAE
4. Canada
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Answer: D
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Iceland, a water rich country, has freshwater about _____ million gallons per person per year:

1. 150
2. 155
3. 160
4. 165
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Answer: C
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Kuwait, a water stress country, has freshwater about _____ million gallons per person per year:

1. 2,000
2. 3,000
3. 4,000
4. 5,000
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Answer: B
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The waterborne diseases caused more then _______ deaths of young children per day:

1. 2,000
2. 3,000
3. 4,000
4. 5,000
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Answer: C
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Ecological Pyramid has main types:

1. 3
2. 4
3. 5
4. 6
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Answer: A
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The quantitative estimate of the total mass or amount of living material is called:

1. Ecological Pyramid
2. Biota
3. Biomass
4. BOD
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Answer: C
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It is estimated that cropland per person will be decline to ____ in 2050:

1. 0.10 ha
2. 0.11 ha
3. 0.13 ha
4. 0.15 ha
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Answer: D
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