UGC NET Paper 1 — Environmental Science

In a polluted urban area, which of the following constituents of photochemical smog has the least concentration (parts per billion by volume)?

According to Noise Pollution (Regulation and Control) Rules, 2000, the night time noise standard for commercial areas in India is?

In agricultural regions, groundwater can have significant concentrations of which pollutant?

Eutrophication in a water body leads to which of the following? A. Bloom of algae B. Increase in the level of dissolved oxygen (DO) C. Increase in turbidity and odor of the water b...

Given below are two statements Statement I: Aerobic digestion of sewage sludge requires lots of energy Statement II: Aerobic digestion of sewage sludge produces huge amount of meth...

According to composition (%) of typical fine continental aerosols, identify the correct sequence in decreasing order. A. Sulphate B. Ammonium C. Organic carbon D. Elemental Carbon...

Point sources of water pollution are: A. Underground coal mines B. Run-off from farm fields C. Sewage treatment plants D. Run-off from roads and construction sites E. Power plants...

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R Assertion A: Ground level concentration of ozone decreases at night Reason R: U...

In a typical fine continental aerosol, according to its composition, which of the following constituents is most abundant?

Which of the following contaminants in water can cause adverse human effects such as mental disturbance and impairment of speech, hearing and vision?

During a combustion process, the following air pollutants are produced: A. Nitric oxide B. Nitrogen dioxide C. Nitrous oxide D. Carbon monoxide E. Ozone Choose the correct answer f...

'Wheezing' is the most relevant Health Effect in case of the air pollutant

The primary treatment of wastewater involves removal of