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Environmental Science

Environmental Science
World's most problematic aquatic weed is

trapa
wolffia
eichornia
azolla

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Environmental Science
In grassland ecosystem, the pyramid of biomass is

spindle shaped
upright
none of these
inverted

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Environmental Science
The temperature scale that sets freezing of pure water at 32o F:

British
Kelvin
Celsius
Fahrenheit

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Environmental Science
Black lung disease is associated with

Sweepers
Farmers
Textile industry workers
Coal miners

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Environmental Science
The processes of condensation and freezing:

Do not affect the temperature of their surroundings
Both absorb sensible heat from the environment
Both release sensible heat into the environment
Do not involve energy transport

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Environmental Science
As the air temperature increases, with no addition of water vapour to the air, the relative humidity will:

Increase
Increase until it becomes equal to the dew point temperature
Decrease
Remain the same

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