1.

Each year a specific aspect of water is highlighted while observing International World Water Day; this year’s theme was “wastewater”, which is defined as any water that has been adversely affected in quality by anthropogenic influences and as a result of domestic, industrial, commercial and agricultural activities. _____________________________. Most of our freshwater sources are under threat. When public awareness of pollution is limited, the cost of pollution to our health and the ecosystem is huge. The victims are generally the poor or socially vulnerable communities, and the end result is a high financial burden on the community and government.

A. In recent decades, population growth, accelerated urbanisation and economic development have resulted in an increase in the quantity of wastewater and the overall pollution load being generated.
B. Globally, over 80% of the wastewater generated goes back to the ecosystem without being treated or reused.
C. The opportunities for exploiting wastewater as a resource are enormous.
D. Another fact is that 1.8 billion people use drinking water contaminated with faeces which increases their risk of contracting cholera, dysentery, typhoid and polio.
E. The benefits to our health and in terms of economic development and environmental sustainability, business opportunities and ‘green’ jobs far outweigh the costs of wastewater management.
Answer» B. Globally, over 80% of the wastewater generated goes back to the ecosystem without being treated or reused.


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