Roadmap for Answer Writing Introduction Briefly introduce Electronic Toll Collection (ETC) and its significance in modern highway systems. Mention the technologies that facilitate ETC. Technologies Employed for Electronic Toll Collection RFID Technology: Explain how RFID tags (like FASTag in India) are used for automatic toll ...
Model Answer Introduction The world is facing an acute shortage of clean and safe freshwater, driven by factors such as population growth, climate change, and pollution. Innovative technologies are essential to address this crisis. Here are three alternative technologies that can help solve the fresRead more
Model Answer
Introduction
The world is facing an acute shortage of clean and safe freshwater, driven by factors such as population growth, climate change, and pollution. Innovative technologies are essential to address this crisis. Here are three alternative technologies that can help solve the freshwater scarcity issue, along with their merits and demerits.
1. Desalination Technologies
Desalination involves converting seawater into freshwater by removing salt and impurities. This technology is particularly beneficial for coastal regions facing freshwater shortages. For instance, the Sorek desalination plant in Israel supplies approximately 20% of the country’s drinking water.
- Merits:
- Provides a reliable water source for coastal areas.
- Can produce large quantities of freshwater to meet urban demands.
- Demerits:
- High energy consumption, which can increase carbon footprints.
- Environmental concerns related to brine disposal, which can harm marine ecosystems.
2. Rainwater Harvesting
Rainwater harvesting captures and stores rainwater for reuse, especially in areas with seasonal rainfall. Traditional methods, such as Johads in Rajasthan, effectively recharge groundwater and provide irrigation water.
- Merits:
- Simple to implement and cost-effective.
- Reduces reliance on groundwater and helps in groundwater recharge.
- Demerits:
- Effectiveness is limited in regions with low rainfall.
- Requires adequate storage infrastructure to be effective.
3. Wastewater Recycling and Reuse
This technology treats and reuses wastewater for various applications, including industrial use and potable water. Singapore’s NEWater project is a notable example, meeting about 40% of the country’s water needs.
- Merits:
- Conserves freshwater by recycling used water.
- Reduces the burden on freshwater sources and wastewater treatment facilities.
- Demerits:
- High initial setup costs can be a barrier to implementation.
- Public resistance to using treated wastewater may hinder acceptance.
Conclusion
In conclusion, tackling freshwater scarcity requires a combination of innovative technologies like desalination, rainwater harvesting, and wastewater recycling, along with effective policies and community involvement to ensure sustainable water access.
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Model Answer Introduction Electronic Toll Collection (ETC) on highways is transforming toll payment systems by utilizing advanced technologies such as RFID (Radio Frequency Identification), ANPR (Automatic Number Plate Recognition), and DSRC (Dedicated Short-Range Communication). These technologiesRead more
Model Answer
Introduction
Electronic Toll Collection (ETC) on highways is transforming toll payment systems by utilizing advanced technologies such as RFID (Radio Frequency Identification), ANPR (Automatic Number Plate Recognition), and DSRC (Dedicated Short-Range Communication). These technologies automate toll transactions, enhance efficiency, and reduce congestion, significantly improving the driving experience.
Technology Employed for Electronic Toll Collection
Advantages
Limitations
Proposed Changes for a Seamless Process
Potential Hazards of the Transition
Conclusion
The evolution of electronic toll collection technologies promises to enhance highway travel efficiency and reduce costs. However, addressing potential risks, such as cybersecurity threats and equitable access, is crucial for ensuring that ETC systems remain inclusive and reliable for all road users.
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