Explanation:
disavantage
many diseases are caused due to spread of mosquitoes, worms and insects on account of stationary water in canals.
advantage
economic development can be expedited by avoiding dangerous droughts. depending on rainfall can be minimized through canal development.
This type would be debris and grit pollutants. Sewage treatment plants separate this type of pollutants from the water and clean the water making it available for further use. It is basically recycling of water, so you should not drop it into the toilet, but if you do it will be cleaned eventually and removed from the water.
Saturated air has a relative humidity of 100%
Answer:
=> D. Scarcity of water resources caused more disputes between nations in recent years compared to oil.
