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Environmental Science

Environmental Science
BOD of a river water is found very high. This means water

contain Algae
contain many dissolved minerals
is clear
is highly polluted

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Environmental Science
The type of ecosystem with the highest mean plant productivity is

desert
tropical rain forest
temperate grassland
tundra

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Environmental Science
The pyramid of energy in terrestrial ecosystem is

Inverted
Spindle shaped
Irregular
Upright

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Environmental Science
The processes of condensation and freezing:

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

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Environmental Science
Increased surface UV leads to increased __________ ozone

stratospheric
exospheric
tropospheric
lonospheric

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Environmental Science
The 3 R principle in waste management involves

Reduce, Reform, Reset
Reduce, Regain, Reuse
Reduce, Retain, Regain
Reduce, Reuse, Recycle

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