Environmental Engineering in CE
Presence of non-biodegradable substances, like alkyl benzene sulphonate (ABS) from the detergents in polluted water stream causes

Persistent foam
Fire hazards
Depletion of dissolved oxygen
Explosion hazards

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Environmental Engineering in CE
Which of the following is not a practical method of low level radioactive waste disposal?

Filling in steel crates and shooting it off out of earth
Discharging to atmosphere through tall stacks after dilution
Disposing off in rivers & oceans
Dilution with inert material

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