NPTEL Air Pollution and Control Week 8 Assignment Answers 2025
1. According to case study “Indoor Air Quality in Nursery Buildings, UAE – Case Study” What measures were adopted to monitor indoor air quality in nursery buildings in the UAE?
- Controlling the source of pollutants
- Improving ventilation
- Removing pollutants via purification
- All the above
Answer :- For Answers Click Here
2. Controlling the source of pollutants, improving ventilation and removing pollutants via purification.
- True
- False
Answer :-
3. What is the primary substance responsible for ozone layer depletion?
- Methane (CH4)
- Chlorofluorocarbons (CFCs)
- Carbon Dioxide (CO2)
- Ammonia (NH3)
Answer :-
4. Which international treaty was established to address ozone depletion?
- Kyoto Protocol
- Paris Agreement
- Montreal Protocol
- Basel Convention
Answer :-
5. What is a major cause of global warming?
- Particulate matter emission
- Accumulation of greenhouse gases like CO2 and CH4
- Deforestation in tropical regions
- Loss of biodiversity
Answer :-
6. Which human activity is the largest contributor to methane emissions?
- Industrial manufacturing
- Fossil fuel combustion
- Livestock farming and rice cultivation
- Urban infrastructure development
Answer :- For Answers Click Here
7. GHGs act like a blanket wrapped around the Earth, trapping the outgoing longwave (infrared) radiation from the earth surface and thus declining global atmospheric temperature.
- True
- False
Answer :-
8. Which Sustainable Development Goals (SDG) focuses on action to combat climate change and its impacts?
- SDG – 6
- SDG – 10
- SDG – 13
- SDG – 16
Answer :-
9. Which pollutants are responsible for the formation of acid rain?
- Methane (CH4) and carbon monoxide (CO)
- Sulfur dioxide (SO2) and nitrogen oxides (NOx)
- Volatile organic compounds (VOCs) and ozone (O3)
- Ammonia (NH3) and particulate matter (PM2.5)
Answer :-
10. What is a significant effect of acid rain on aquatic ecosystems?
- Increased water temperatures
- Lowering pH levels, leading to the death of aquatic organisms
- Increased levels of dissolved oxygen in water
- Decreased biodiversity in terrestrial environments
Answer :- For Answers Click Here
