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Environmental Science

Environmental Science
Water used for paper mills should not contain

sodium
magnesium
iron
chlorine

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Environmental Science
Scientists are able to determine the air temperature in the thermosphere by:

Using radiosondes
Direct measurements in manned, high-altitude balloons
Observing changes in satellite orbits
Using temperature probes in orbiting satellites

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Environmental Science
Concept of ecological pyramids was proposed by

Charles Elton
Clements
Odum
Tansley

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Environmental Science
Most harmful environmental pollutants are

non-biodegradable chemicals
natural nutrients in excess
human organic wastes
waste animal feed

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Environmental Science
Trichodermaharzianum has proved a useful microorganism for

reclamation of wastelands
bioremediation of contaminated soils
biological control of soil-borne plant pathogens
gene transfer in higher plants

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Environmental Science
Growing agricultural crops between rows of planted trees is known as

Jhum
Taungya system
Agroforestry
Social forestry

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MORE MCQ ON Environmental Science

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