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Environmental Science

Environmental Science
The main atmospheric layer near the surface of earth is

mesophere
stratosphere
ionosphere
troposphere

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Environmental Science
Endoderm forms

respiratory system
nervous system
viscera and digestive system
blood and bone

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Environmental Science
Where cold surface air replaces warm air, the boundary separating the different bodies of air is:

A parallel of latitude
A cold front
A tornado
A warm front

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Environmental Science
The first global environmental protection treaty "The Montreal Protocol" was signed on September 26 in

1987
1985
1990
1981

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Environmental Science
According to the Stefan-Boltzmann law, the radiative energy emitted by one square meter of an object is equal to a constant multiplied by its temperature raised to the _______ power.

Zeroeth
Fourth
Negative third
Tenth

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Environmental Science
The gas that shows the most variation from place to place and from time to time in the lower atmosphere:

Water vapour (H2O)
Argon (Ar)
Carbon dioxide (CO2)
Methane (CH4)
Ozone (O3)

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