Make a flow chart on water. Which have to include the following things::
1.)sources of water
2.) causes of scarcity
3.)uses of water
4.)conservation of water
Answers
Explanation:
1) The hydrological cycle, or water cycle, is the continuous circulation of water between oceans, atmosphere and land (Figure 4.1). The sun and wind cause water to evaporate (change its physical state from liquid to gas) from land and water bodies (oceans, lakes and rivers). Also, plants take up liquid water and give off water vapour through pores in their leaves in a process called transpiration. The water vapour moves high above the Earth’s surface on rising currents of air through the atmosphere. Eventually as the water vapour reaches the cooler air higher up in the atmosphere, it condenses (changing from gas to liquid) to form clouds and falls back to Earth in the form of rain and snow (together these are called precipitation). Precipitation that falls on land can flow over the surface as run-off into rivers and streams, and can also percolate (trickle down) through the soil into underground rocks to become groundwater.
2) Resource scarcity is defined as a situation where demand for a natural resource is exceeding the supply – leading to a decline in available resources. When we talk about scarce resources, we usually imply that current use is unsustainable in the long-term.
Scarcity can involve non-renewable resources, such as oil, precious metals and helium. It can also involve potentially renewable resources, which are being consumed faster than their ability to replenish (e.g. over-fishing, excess use of fresh water
3) Water plays an important role in the world economy. Approximately 70% of the freshwater used by humans goes to agriculture.[4] Fishing in salt and fresh water bodies is a major source of food for many parts of the world. Much of long-distance trade of commodities (such as oil and natural gas) and manufactured products is transported by boats through seas, rivers, lakes, and canals. Large quantities of water, ice, and steam are used for cooling and heating, in industry and homes. Water is an excellent solvent for a wide variety of substances both mineral and organic; as such it is widely used in industrial processes, and in cooking and washing. Water, ice and snow are also central to many sports and other forms of entertainment, such as swimming, pleasure boating, boat racing, surfing, sport fishing, diving, ice skating and skiing.
4)Water conservation includes all the policies, strategies and activities to sustainably manage the natural resource of fresh water, to protect the hydrosphere, and to meet the current and future human demand. Population, household size and growth and affluence all affect how much water is used. Factors such as climate change have increased pressures on natural water resources especially in manufacturing and agricultural irrigation.[1] Many countries have already implemented policies aimed at water conservation, with much success.[2]