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Environmental Science

Environmental Science
In a photochemical smog, which gas is an eye and mucous membrane irritant?

SO2
N2O
CO2
O3

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Environmental Science
Superbugs are

Radio nucleotide
Bacteria
Synthetic bug
Industries

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Environmental Science
The best way to check soil erosion is by providing adequate trees and

Manure
Water
Sand
Grass cover

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Environmental Science
5th June is observed as

World wildlife day
World forest day
World environment day
World population day

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Environmental Science
The range of normal human hearing is in the range of

15000 Hz and above
50 Hz to 80 Hz
10 Hz to 80 Hz
50Hz to 15000 Hz

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Environmental Science
Mobile combustion accounts

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

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