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Environmental Science

Environmental Science
What is the only continent on earth where Giraffes live in the wild?

Pakisthan
Africa
India
Srilanka

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Environmental Science
A graphic representation of number of individuals of different species belonging to each trophic level in a an ecosystem is known as

Ecological pyramid
Pyramid of energy
Pyramid of biomass
Pyramid of number

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Environmental Science
Sunlight passes through a thicker portion of the atmosphere at

Sunset
Night
Both a and c
Sunrise
Noon

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Environmental Science
Cement factory labourers are prone to

bone marrow disease
leukemia
cytosilicosis
asbestosis

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Environmental Science
All are physical pollutants except

radiations
heat
soot
sound

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Environmental Science
Often before sunrise on a clear, calm, cold morning, ice (frost) can be seen on the tops of parked cars, even when the air temperature is above freezing. This condition happens because the tops of the cars are cooling by:

Latent heat
Radiation
Conduction
Convection

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