Activities that Affect the Quality and Availability of Water for Human Use_10.pptx
- 2. 1. Which of the following can have a serious detrimental impact on water resources? a. Human Activities b. Employment c. Inflation d. Virus
- 3. 2. Which human activities threatened the quality of water? a. Cleaning the seashore b. Planning Trees c. Agriculture d. Mining
- 4. 3. Farming is a part of agriculture and before raising a crop, the soil prepared by loosening the soil using tractors. Which of the following substances produced in the large amounts as a result this activity? a. Sediments b. Growth of cities c. Clearance of forest d. Closing of illegal mining
- 5. 4. Which of these practices show conservation of water? a. Repair leaking faucet b. Wash clothes everyday c. Take a long shower than bathing d. Use running water when brushing teeth
- 6. 5. Which of the following affects the quality of water? a. Wastes b. Climate Change c. Precipitation d. Hydropower plant
- 7. 6. Which of these practices show conservation of water? a. Repair leaking faucet b. Wash clothes everyday c. Take a long shower than bathing d. Use running water when brushing teeth
- 8. 7. What is the massive driver of pollution? a. Population b. Urbanization c. Development d. Climate Change
- 9. 8. Which of the following is not considered as the Philippine’s main source of water? a. Rivers b. Ponds c. Lakes d. Groundwater reservoir
- 10. 9. Which law would guide Filipinos to protect the country’s main source of water. a. R.A. 9003 b. R.A. 8749 c. R.A. 1995 d. R.A. 9275
- 11. 10. What human activity uses the most water? a. Mining b. Industrial c. Agriculture d. Construction
- 12. QUALITY AND AVAILABILITY OF WATER FOR HUMAN USE • Water is a substance that forms water resources. • Our resources are facing threat from variety of factors, the majority of which are driven by human activities.
- 13. QUALITY AND AVAILABILITY OF WATER FOR HUMAN USE • The impact of these activities on the quality of water for human consumption would be considerably reduced if these activities were addressed.
- 14. Study the pictures then write two suggestions to conserve and protect water resources. Suggestions: 1. 2. 1.
- 15. Study the pictures then write two suggestions to conserve and protect water resources. Suggestions: 1. 2. 2.
- 16. Study the pictures then write two suggestions to conserve and protect water resources. Suggestions: 1. 2. 3.
- 17. Study the pictures then write two suggestions to conserve and protect water resources. Suggestions: 1. 2. 4.
- 18. Study the pictures then write two suggestions to conserve and protect water resources. Suggestions: 1. 2. 5.
- 19. Water quality • Describes the condition of water, including chemical, and biological characteristics, usually concerning its suitability for a particular purpose such as drinking or swimming.
- 20. Physical Attributes of Water • Temperature • Color • Taste • Odor • Turbidity.
- 21. Temperature of water affects some of the important physical properties and characteristics of water • is the property of a material to absorb heat when it is heated and to release heat when it is cooled. Thermal Capacity
- 22. Temperature of water affects some of the important physical properties and characteristics of water • is the measurement of the mass of a substance or object Density
- 23. Temperature of water affects some of the important physical properties and characteristics of water Specific weight
- 24. Temperature of water affects some of the important physical properties and characteristics of water • is the tendency of a Fluid to resist any change in its shape or Motion. It is a measure of the internal forces of a Fluid. Viscosity
- 25. Temperature of water affects some of the important physical properties and characteristics of water • the tension of the surface film of a liquid caused by the attraction of the particles in the surface layer by the bulk of the liquid, which tends to minimize surface area. Surface tension
- 26. Temperature of water affects some of the important physical properties and characteristics of water Specific Conductivity
- 27. Temperature of water affects some of the important physical properties and characteristics of water • the tension of the surface film of a liquid caused by the attraction of the particles in the surface layer by the bulk of the liquid, which tends to minimize surface area. Salinity
- 28. Temperature of water affects some of the important physical properties and characteristics of water Solubility of Dissolved Gases
- 29. Color
- 30. Color • is primarily a concern of water quality for aesthetic reasons • Colored water gives the appearance of being unfit to drink, even though the water may be perfectly safe for public use.
- 31. Color • It can indicate the presence of organic substances, such as algae or humic compounds. • color has been used as a quantitative assessment of the presence of potentially hazardous or toxic organic materials in water.
- 32. Taste and Odor
- 33. Taste and Odor Human perception of taste Sour (hydrochloric acid) Salty (Sodium Chloride) Sweet (sucrose) Bitter (Caffeine) Taste
- 34. Taste and Odor • Humans detect many more tips of odor than tastes. Organic materials discharged directly to water, such as falling leaves, runoff, etc., are sources of tastes and odor- producing compounds released during biodegradation.
- 35. Turbidity • is a measure of the light-transmitting properties of water and is comprised of suspended and colloidal material. It is important for health and aesthetic reasons.
- 36. Chemical characteristics of natural water • are a reflection of the soils and rocks with which the water has been in contact • In addition, agricultural and urban runoff and municipal and industrial treated wastewater impact the water quality. Microbial and chemical transformations also affect the chemical characteristics of water. (Source: https://echo2.epfl.ch/VICAIRE/mod_2/chapt_2/main.htm)
- 37. Chemical characteristics of natural water • Water with good qualities is good for human consumption. • Water availability is defined as the quantity of water that can be used for human purposes without significant harm to ecosystems or other users.
- 38. Water Scarcity • occurs when the amount of water withdrawn from lakes, rivers or groundwater is so great that water supplies are no longer adequate to satisfy all human or ecosystem requirements, resulting in increased competition between water users and other demands. • Water scarcity can be caused primarily by human activities which promote sedimentation, pollution, climate change, deforestation, landscape changes, and urban growth.
- 39. Water Scarcity • Human waste disposal contributes to pollution of the air, land, and water resources. Such pollution can affect the quality of rainwater and water resources both above and below ground, thus damaging our natural systems.
- 40. Chemical characteristics of natural water • However, our water resources face a host of serious threats. Currently, about 40% of the world's population lives in water-stressed areas. • (Source: https://freshwaterwatch.thewaterhub. org/.2020)
- 41. Although it is difficult to instantly put an end to such problems, man must manage, develop, and protect water and related resources in an environmentally and economically sound manner.
- 42. • How about you? How can you protect our water resources? • How will you promote water conservation effectively as a student?
- 43. Conservation is the ethical use and protection of valuable resources.
- 44. On a clean sheet of paper, write a slogan that promotes the conservation of water. ACTIVITY
- 45. Assignment: 1.Among the aforementioned activities, which brings great danger to the quality and availability of water? Support your answer. 2. Observe the physical characteristics of tap water at home. Write your observations. a. Color c. Odor b. Taste d. Turbidity 3. Write three precautionary measures to maintain a clean and safe water for human consumption.