Test TMA 2012 (UPNA)

Water with a high concentration of dissolved ions will be purified very well by filtration over activated carbon. True. False.

BOD values will be higher than COD values. TRUE. FALSE.

If water has a $BOD = 60 mgO2/L$, it means it has 60ppm of dissolved O2. TRUE. FALSE.

Phosphates contained in urban wastewater would be reduced in the tertiary treatment. TRUE. FALSE.

Secondary treatment with biological filters is fundamentally used to achieve a reduction of non-biodegradable organic matter in the water. TRUE. FALSE.

Equal concentrations of different atmospheric pollutants cause identical environmental effects. TRUE. FALSE.

The danger of pesticides present in gaseous effluents to humans depends, among other factors, on their size. TRUE. FALSE.

It is interesting/desirable for a certain amount of ozone to exist in the atmosphere, whether in the troposphere or the stratosphere. TRUE. FALSE.

Immission and emission concentrations are always equal. TRUE. FALSE.

The efficiency of an absorbent for pollutant purification is a function of the nature of the absorbent-gas system, but porosity and the surface area of the absorbent are also very important. TRUE. FALSE.