Estuaries are a type of wetland that contains brackish water. These are areas that are covered with water during parts of the year and are very biodiverse areas (contain many different species).
Estuaries and their surrounding wetlands are bodies of water usually found where rivers meet the sea. Estuaries are home to unique plant and animal communities that have adapted to brackish water—a mixture of fresh water draining from the land and salty seawater.
Estuaries are a type of wetland that contains brackish water. These are areas that are covered with water during parts of the year and are very biodiverse areas (contain many different species).
Estuaries and their surrounding wetlands are bodies of water usually found where rivers meet the sea. Estuaries are home to unique plant and animal communities that have adapted to brackish water—a mixture of fresh water draining from the land and salty seawater.
This presentation talks about the Water Uses, Water Forms and Distribution, Availability, Fresh Water Shortage, Water Use Problems and Conflicts Increase Water Supply, Floods and Drought
It talks about the shortage of water all across the globe. So people should use it effectively without unnecessary wastage.
Fresh Water resources
Global Overview
Volume of water stored in the water cycle's reservoirs
Scarcity of fresh water
Water consumption for food production (I)
Competing water uses
Fresh Water supply
Problems related to Water crisis
Threats to fresh water resources
Distribution of population and water resources
Pressure of freshwater ecosystem
Fresh Water Outlook
Water in China
Desalination of sea water as fresh water supply
USE & MISUSE OFWATER RESOURCES& LAND RESOURCESSushanta Gupta
Land and Land Resources refer to a delineable area of the earth's terrestrial surface, encompassing all attributes of the biosphere immediately above or below this surface, including those of the near-surface, climate, the soil and terrain forms, the surface hydrology (including shallow lakes, rivers, marshes and swamps), the near-surface sedimentary layers and associated groundwater and geo-hydrological reserve, the plant and animal populations, the human settlement pattern and physical results of past and present human activity
a descriptive ppt on deforestation,link gives solution on deforestation:- http://youtu.be/7MJZmzOh4Po deforestaion affects,deforestation causes, deforestation solution,factors causing deforestation ,Indian statistics on deforestation ,global affect of deforestation,informative ppt on deforestation,overall deforestation,ppt on deforestation by mandar gadkari
This presentation talks about the Water Uses, Water Forms and Distribution, Availability, Fresh Water Shortage, Water Use Problems and Conflicts Increase Water Supply, Floods and Drought
It talks about the shortage of water all across the globe. So people should use it effectively without unnecessary wastage.
Fresh Water resources
Global Overview
Volume of water stored in the water cycle's reservoirs
Scarcity of fresh water
Water consumption for food production (I)
Competing water uses
Fresh Water supply
Problems related to Water crisis
Threats to fresh water resources
Distribution of population and water resources
Pressure of freshwater ecosystem
Fresh Water Outlook
Water in China
Desalination of sea water as fresh water supply
USE & MISUSE OFWATER RESOURCES& LAND RESOURCESSushanta Gupta
Land and Land Resources refer to a delineable area of the earth's terrestrial surface, encompassing all attributes of the biosphere immediately above or below this surface, including those of the near-surface, climate, the soil and terrain forms, the surface hydrology (including shallow lakes, rivers, marshes and swamps), the near-surface sedimentary layers and associated groundwater and geo-hydrological reserve, the plant and animal populations, the human settlement pattern and physical results of past and present human activity
a descriptive ppt on deforestation,link gives solution on deforestation:- http://youtu.be/7MJZmzOh4Po deforestaion affects,deforestation causes, deforestation solution,factors causing deforestation ,Indian statistics on deforestation ,global affect of deforestation,informative ppt on deforestation,overall deforestation,ppt on deforestation by mandar gadkari
Since the existence of humans, precious trees have been destroyed to provide shelter, food, heat and supplies for economic growth and development. Consistent and an increasing demand for products for human comfort, endangers large forests and the environment. Continuous deforestation is disrupting the natural balance of ecosystems. Populations fail to realize that their daily habits and patterns of energy and paper consumption is damaging in the long-run. As deforestation becomes more and more widespread, little is being done to preserve nature
Water Resources and Water PollutionLife on planet Earth would be.docxmelbruce90096
Water Resources and Water Pollution
Life on planet Earth would be impossible without water. All life forms, from unicellular bacteria to multicellular plants and animals, contain water. Humans are composed of approximately 60 percent water by body weight and we depend on water, not only for our survival, but for our convenience: We drink it, cook with it, wash in it, travel on it, and use an enormous amount of it for agriculture, manufacturing, mining, energy, production, and waste disposal. Though 71% of the Earth’s surface is covered in water, only 0.024% of the overall water supply is available as liquid freshwater that is easily accessible. It is one of the most poorly managed resources, easily wasted and often polluted. The available freshwater is collected, purified and distributed in the hydrologic cycle, but this cycle is easily interrupted by overloading with pollution, reducing wetlands, and reducing forests.
We get water from groundwater and surface water. Groundwateris water that seeps into the ground between spaces in soil and gravel until it reaches impenetrable bedrock. One of the most important sources of freshwater. The top of the groundwater zone that moves up and down based on weather is the water table. The water table drops in level when humans remove water at a faster rate than it is replenished. Surface wateris freshwater from precipitation and melted snow that flows into lakes, wetlands, rivers, and eventually into the oceans.
Water shortages are caused by many factors including dry climate and drought. In some places, the human population uses water at a faster rate than the water is replenished. 30% of the Earth’s land mass now experiences severe or extreme drought and 1 billion people lacked regular access to clean water for drinking, cooking, and washing.
Water Supplies
Aquifers, underground water supplies, are renewable as long as the groundwater doesn’t become contaminated and withdrawn too quickly. Most aquifers around the world, and in the largest food producing countries, are being used up quicker than their rate of replenishment. Dam and reservoir systems are used to capture and hold runoff water. The collected water can be released at need to control flooding, supply water for farming and cities, and to produce electricity. The use of dams and reservoirs has increased the amount of reliable surface runoff by one-third. Unfortunately, these systems also displace people, flood productive lands, and disrupt the ecological services rivers provide.
Tunnels, aqueducts, and underground pipes transfer runoff from dams and reservoirs to water-poor areas. These transfer systems can be wasteful and environmentally harmful by shrinking the water source as more is transferred to water-poor areas. Another option for freshwater is desalinization which involves removing salts from ocean or brackish water. Usually desalinization costs a lot because of the energy required; it also kills many marine organisms and creates salty.
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2. PRESENTATION PAGE Alexandra Alzate Ospino 5B Bennett School Cali-Colombia March 1 of 2010
3. On this virtual album I am going to talk about how do people use natural resources, the bad ways and the wrong ways. Here I am going to tell you also some proposals to save water . Here is also going to be some information about the types of natural resources . I am going to give some information about the importance of natural resources. INTRODUCTION
4. GLOSSARY Hydropower:(hydroelectric power) electric power generated using water power. Reservoirs: a large tank or natural or artificial lake used for collecting and storing water for human consumption or agricultural use. Otherwise : if things had been different. Spawn: a mass of eggs of a fish, amphibian, or other water animal. Emitted: to send or give out something. Eutrophication: the process by which a body of water becomes rich in dissolved nutrients from fertilizers or sewage, thereby encouraging the growth and decomposition of oxygen-depleting plant life and resulting in harm to other organisms.
5. HOW DO PEOPLE USE WATER RESOURCES Water resources are sources of water that is useful for humans. 97% of water on earth is salt water leaving only 3% as fresh water. The ways people use water are: agricultural, industrial, household, recreation and environmental activities.
6. AGRICULTURAL Is estimate that 69%of world wide water use is for irrigation. Irrigation is the process by which water is brought to land through any of a variety of artificial means. Aquaculture is a small but growing agricultural use of water. Food and agriculture are the largest consumers of water, requiring one hundred times more than we use for personal needs. Up to 70 % of the water we take from rivers and groundwater goes into irrigation, about 10% is used in domestic applications and 20% in industry.
7. INDUSTRIAL It is estimated that 15% of water use is industrial. Major industrial users include power plants, ore and oil refineries. Water is used in power generation. Hydroelectricity is electricity obtained from hydropower. Hydroelectric power comes from water driving a water turbine connected to a generator.
8. It is estimated that 15% of water use is of household purposes. This include drinking water, bathing, cooking, sanitation, and gardening. HOUSEHOLD
9. RECREATION Recreational water use is usually a very small but growing percentage of total water use. Recreational water use is mostly tied to reservoirs. If a reservoir is kept fuller than it would otherwise be for recreation, then the water retained could be categorized as recreational usage.
10. Explicit environmental water use is also a very small but growing percentage of total water use. Environmental water usage includes artificial wetlands, artificial lakes intended to create wildlife habitat, fish ladders around dams, and water releases from reservoirs timed to help fish spawn. Like recreational usage, environmental usage is non-consumptive but may reduce the availability of water for other users at specific times and places. For example, water release from a reservoir to help fish spawn may not be available to farms upstream. enviromental
11. proposals Problem: Water is decreasing Objective: Teach people how to save water Possible solution : Inform the people the importance of the water and teach them to close the sink when it is watering with out purpose, don’t leave the hose open when you are washing your car or watering your garden. Need: Save water $: The government should make a law that provide the bad use of the water
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13. Problem : water pollution Two types of water pollutants exist; point source and nonpoint source. Point sources of pollution occur when harmful substances are emitted directly into a body of water. A nonpoint source delivers pollutants indirectly through environmental changes. An example of this type of water pollution is when fertilizer from a field is carried into a stream by rain, in the form of run-off Pollution is also caused when silt and other suspended solids, such as soil, wash off plowed fields, construction and logging sites, urban areas, and eroded river banks when it rains.
14. Under natural conditions, lakes, rivers, and other water bodies undergo Eutrophication, an aging process that slowly fills in the water body with sediment and organic matter. When these sediments enter various bodies of water, fish respiration becomes impaired, plant productivity and water depth become reduced, and aquatic organisms and their environments become suffocated. Pollution in the form of organic Three last forms of water pollution exist in the forms of petroleum, radioactive substances, and heat. Petroleum often pollutes water bodies in the form of oil, resulting from oil spills.
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17. Objective: teach the people that if the contaminate water not only we are going to have no water but we won´t have animals and plants. Possible solution: Don’t throw trash to the rivers, lakes, oceans, ect. Needs: We need more fresh water that we can drink. $: By the T.V or posters to educate people to save water. Problem: Climate change Climate change could have significant impacts on water resources around the world because of the close connections between the climate and hydrologic cycle. Rising temperatures will increase evaporation and lead to increases in precipitation, though there will be regional variations in rainfall. Overall, the global supply of freshwater will increase. Both droughts and floods may become more frequent in different regions at different times, and dramatic changes in snowfall and snowmelt are expected in mountainous areas. Higher temperatures will also affect water quality in ways that are not well understood. Possible impacts include increased eutrophication. Climate change could also mean an increase in demand for farm irrigation, garden sprinklers, and perhaps even swimming pools.
18. Objective : control water from floods by protecting the ozone layer Possible solution: don’t contaminate, don’t make gases from factories, cars, buses, ect. needs: Prevent strong climate changes. $:the local government should work with the people that are damage from climate changes. Problem: Expansion of business activity Business activity ranging from industrialization to services such as tourism and entertainment continues to expand rapidly. This expansion requires increased water services including both supply and sanitation, which can lead to more pressure on water resources and natural ecosystems. Objective: don’t use very much water Possible solution: stop making things that require so much water. Need: more water
19. $: Due to the high pollution of the planet caused by many factories that no matter how bad it is released into the atmosphere all its waste. Would be good if the government tried to implement ways to prevent this happening.
20. news People in Colombia have collected over 2 million signatures from their fellow citizens in support of a constitutional amendment supporting the fundamental human right to water. Ten days ago the Colombian House of Representatives pushed forward a law which directly contradicts the water referendum and accelerates water privatization in Colombia. "A typical family farm consists of 4 people, a dog, 10 chickens, 5 pigs and 5 head of cattle with 400 m2 nursery and garden around the house, at a cost of 191 l / p * d for domestic purposes and productive in a weekend with irrigation. Watering is done every three days in dry season. If this family has coffee consumption increases by 58 l / p * d for two seasons a year and additionally if you have a fish tank is increased by 420 l / p * day "
21. A person spends 220 liters if you bathe with bath and 30 if showers, a dripping tap at home is 35,000 liters of water per year, a tanker, 145,000 liters per year. 35,000 liters of water per year, 220 liters