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Environmental Science

Environmental Science
The total mass of water vapour stored in the atmosphere at any moment is about ____ of the world's supply of precipitation.

1 month
1 week
1 day
1 year

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Environmental Science
Ozone Umbrella is located in which layer of atmosphere

Mesosphere
Ionosphere
Troposphere
Stratosphere

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Environmental Science
Example of primary pollutant

hydrocarbons
CO
NO2
SO2

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Environmental Science
Endoderm forms

nervous system
respiratory system
viscera and digestive system
blood and bone

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Environmental Science
The ozone at ground level is primarily from __________ precursors.

Methane
Oxygen
CFCs
Fossil fuel

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Environmental Science
The range of normal human hearing is in the range of

50Hz to 15000 Hz
15000 Hz and above
50 Hz to 80 Hz
10 Hz to 80 Hz

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