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Environmental Science

Environmental Science
_________ mixed with diesel reduces carbon monoxide emissions up to 50%.

Alcohol
Phenol
Methanol
Ethanol

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Environmental Science
In a volume of air near the earth's surface, ____ occupies 78 percent and ____ nearly 21 percent.

Nitrogen, water vapor
Oxygen, hydrogen
Hydrogen, helium
Hydrogen, oxygen
Nitrogen, oxygen

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Environmental Science
Animals and plants are best protected in

National Parks
Botanical Gardens
Zoos
Sanctuaries

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Environmental Science
In most areas, the warmest time of the day about 5 feet above the ground occurs:

Around noon
In the early evening after 6 PM
Just before the sun sets
In the afternoon between 3 and 5 PM

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Environmental Science
A Hawk that eats a frog is a

Tertiary Consumer
Primary Consumer
Producer
Secondary Consumer

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Environmental Science
_________ are used for converting saline or brackish water into pure distilled water.

Solar desalination systems
Solar water-heating
Photo voltaic cells
Solar cookers

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MORE MCQ ON Environmental Science

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