Question

identify two ways humans in South and Southeast Asia have modified their water supply. What are the positive and negative effects of these modifications?

Answer 1

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☞ Modifications in South Asia, where almost 1.6 billion people live, are important measures to deal with urbanization and population growth. Research has estimated that almost 20 of 32 cities in India have water shortages on a daily basis. Residents of Kathmandu need to wait for hours to get water from the city. This modification helps with the control of water supply but restricts the amount of water to be used by the citizens.

☞ Another South Asian government modification in Pakistan, hides vital information regarding water supply. Fort he government it is classified information, although there are treaties like the Ganges Treaty(1996) that supports the sharing of international information regarding hydroeletric. This is a measure that the Pakistan authorities consider critical for the control and benefit of water. But the lack of information sharing has also affected the government's ability to deal effectively with natural disasters such as floods, earthquakes, and landslides

Answer 2

2 ways have humans in South and Southeast Asia have modified their water supply

Explanation:

• Managing the whole water cycle in an urban setting has become a priority because of increasing urbanization in South and South-East Asia.
• Clean water access and treatment of wastewater was a significant global concern. Urban water management and supply comprise 3 fundamental, however inter-related, services.
• Firstly, clean drinking water is delivered to households without additional treatment. Providing home water-treatment capability by way of using of filters, flocculants, or solar disinfection to make drinking water safe.
• Secondly, wastewater collection from both homes and from industrial and commercial sources which would require adequate  treatment and disposal afterward in an environmentally-friendly way.
• Third is the efficient disposal of storm water, particularly during the monsoon seasons. Implementing rainwater harvesting systems to accumulate and store rainwater for drinking or re-charging underground aquifers

Disadvantages of the above modifications

Rainwater Harvesting: Rainfall is impossible to forecast and poor runoff can also minimize rainwater production, or not. The rainfall in all areas is not the same. Predicting rainfall is also challenging. Therefore, in areas with minimal rainfall it is not advisable to rely on rainwater alone for all your water requirements

Home Water Treatment: Home water treatments may help remover heavy metals such as mercury and chlorine, however they may not be able to remove pesticides. Solar disinfectants is not suitable for improving the quality of huge volumes of water. It does not greatly help in increasing the water quantity or reducing water shortages.