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Environmental Science

Environmental Science
Sinking air warms by this process:

Expansion
Condensation
Compression
Friction

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Environmental Science
High biological oxygen demand indicates:

all of these
absence of microbial pollution
moderate microbial pollution
intense level of microbial pollution

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Environmental Science
Pollutants that are introduced into the environment by human activity are called as

anthropogenic pollutants
all of these
quantitative pollutants
qualitative pollutants

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Environmental Science
This is used as a guide to planting and for determining the approximate date for harvesting crops:

Growing degree-days
Cooling degree-days
Mean annual temperature
Heating degree-days

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Environmental Science
A __________ is formed due to the collection of water in a natural basis or depression in a mountainous area or in plains.

Pond
Lake
Spring
Stream

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Environmental Science
Mobile combustion accounts

50-60 % of air pollution
10-20% of air pollution
5-10 % of air pollution
40-50% of air pollution

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MORE MCQ ON Environmental Science

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