Question

what are the main problems of water resources​

Answer 1

Answer:

Explanation:

These problems contribute to: An increase and exacerbation of sources of contamination. Alterations of the sources of water resources - with scarcity and decreased availability. Increased vulnerability of the human population due to contamination and difficulty of access to good quality water (potable and treated).

Answer 2

Answer:

These problems contribute to: An increase and exacerbation of sources of contamination. Alterations of the sources of water resources - with scarcity and decreased availability. Increased vulnerability of the human population due to contamination and difficulty of access to good quality water (potable and treated).

Explanation:

The present water crisis has many components of an environmental, economic and social origin: overuses of water, pollution, changes in availability, and water mismanagement are some of the current problems. To cope with these problems and enhance strategies for long term management, the following programs and approaches are presented: a) A watershed approach, integrating research, monitoring, data base and management; b) An improved water governance system based on participation of stakeholders and the public and private sector; c) Strategic studies considering water and the economy, water and metropolitan regions, water and energy; d) A framework for international cooperation on shared watersheds; e) An economic evaluation of water resources services (surface and underground, lakes, rivers and reservoirs). f) A capacity building program for managers, with an integrated, predictive and hydrographic basin approach.

• Intense urbanization, increasing the demand for water, expanding the discharge of contaminated water resources, while there is tremendous demand for water for drinking and economic and social development (Tucci, 2008).
• Water stress and scarcity in many regions of the planet due to alterations in availability and increased demand.
• Poor infrastructure or infrastructure in a critical state in many urban areas, with losses in the network of up to 30% after treatment.
• Problems of stress and scarcity due to global changes with extreme hydrological events increasing the human population's vulnerability and compromising food security (intense rains and intense periods of drought).
• Problems caused by the lack of articulation and lack of consistent actions of governability of water resources and for environmental sustainability.

• An increase and exacerbation of sources of contamination.
• Alterations of the sources of water resources - with scarcity and decreased availability.
• Increased vulnerability of the human population due to contamination and difficulty of access to good quality water (potable and treated).

This set of problems is related to the quality and quantity of water and the response to these causes interferes in human and public health, with a deterioration of the quality of life and of economic and social development. The central position of water in the generation of energy, food production, sustainability of biodiversity and global changes is highlighted in Figure 1.

Figure 2 presents the principal inter-relations of the processes that affect the quality and quantity of water, the aquatic biota and the human population.