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Environmental Science

Environmental Science
Suppose two unsaturated air masses mix horizontally. The resulting mixture cannot possibly be saturated.

1

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Environmental Science
Of the gases listed below, which is not believed to be responsible for enhancing the earth's greenhouse effect?

Nitrous oxide (N2O)
Carbon dioxide (CO2)
Methane (CH4)
Molecular oxygen (O2)
Chlorofluorocarbons (CFCs)

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Environmental Science
The European Union has a permanent ban on the use of __________ in toys.

Phthalates
Bisphenol
Clay
Polycarbonate

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Environmental Science
Which plants die after flowering?

Bamboo
Butea
Chrysanthemum
Lotus

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Environmental Science
The presence of high coliform counts in water indicates

phosphorus contamination
hydrocrbon contamination
decreased Biological Oxygen Demand
contamination by human wastes

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Environmental Science
Carbon dioxide is called greenhouse gas because it is

Transparent to sunlight but traps heat
Transparent to heat but traps sunlight
Used in green-house to increase plant growth
Transparent to both sunlight and heat

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