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Environmental Science

Environmental Science
The relationship between nitrogen fixing bacteria and leguminous plants is an example for

Commensalism
Parasitism
Predation
Mutualism

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Environmental Science
Lines connecting points of equal temperature are called:

Thermals
Isotherms
Isobars
Thermographs

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Environmental Science
DDT is a ______________ pollutant

Non biodegradable
Un-biodegradable
Biodegradable
Naturally degradable

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Environmental Science
Carbon dioxide is called greenhouse gas because it is

Transparent to both sunlight and heat
Transparent to heat but traps sunlight
Used in green-house to increase plant growth
Transparent to sunlight but traps heat

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Environmental Science
The source of energy in an ecosystem is

R.N.A
N.A
ATP
Sunlight

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

mesophere
troposphere
ionosphere
stratosphere

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MORE MCQ ON Environmental Science

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