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Environmental Science

Environmental Science
The supersonic jets cause pollution by the thinning of

CO2 layer
O2 layer
O3 layer
SO2 layer

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Environmental Science
The blueness of the sky is mainly due to:

The presence of water vapor
Absorption of blue light by the air
The scattering of sunlight by air molecules
Emission of blue light by the atmosphere

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Environmental Science
In recycling of mineral elements within an ecosystem, the responsible direct acing organism are called

Primary consumers
Producers
Secondary consumers
Decomposers

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Environmental Science
Frost typically forms on the inside of a windowpane (rather than the outside) because:

There is more water vapor touching the inside of the pane
The inside of the pane is colder than the outside
There is less water vapor touching the inside of the pane
None of these

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

ionosphere
troposphere
stratosphere
mesophere

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Environmental Science
Which one of the following cycle is not a gaseous biogeochemical cycle in ecosystem?

Sulphur
Carbon
Nitrogen
Phosphorus

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MORE MCQ ON Environmental Science

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