(1) What is the main source of water
Answers
The main sources of water are surface water, groundwater and rainwater.
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Answer:
Water is one of the most important commodities on earth and it is essential to human life. It is used in diverse areas such as farming, cooking, cleaning, construction, and even for recreational purposes. There are numerous sources of water ranging from underground sources to surface sources. Oceans, ponds, lakes, rivers, springs, aquifers, and streams are some of the main water sources in the world. All these sources are essential for people’s well-being.
Oceans
Oceans are the largest sources of water on the planet. There are five oceans in the entire world. They contain approximately 97% of all the earth’s water. Despite the massive quantities of the essential commodity, ocean water is not suitable for human consumption in its raw form. It contains high salt levels and other impurities that make it unsuitable for household use. However, countries situated in dry regions such as Saudi Arabia, the United Arab Emirates, China, Oman, and Australia use a technique known as desalination to purify ocean water. Desalination involves the striping of salts and other components found in ocean water. The process is not widely used due to huge costs and high energy levels involved. A popular mode of purifying salt water from the ocean is reverse-osmosis where water passes through microscopic pores and salts among other impurities are filtered.
Lakes
Lakes are an important source of livelihood for many people around the world. Scientists estimate that there are 117 million lakes throughout the world. Lakes are classified into two categories: salt-water lakes and freshwater lakes. Water found in lakes is put into different uses by the communities that live around the natural resource. The main use of lake water is in the fishing industry. Most people who live near lakes practice fishing. Farming communities also use lake water to irrigate their farms and boost their agricultural output. Additionally, water in lakes is used as a mode of transport from one point to another whereby people use boats or Water is one of the most important commodities on earth and it is essential to human life. It is used in diverse areas such as farming, cooking, cleaning, construction, and even for recreational purposes. There are numerous sources of water ranging from underground sources to surface sources. Oceans, ponds, lakes, rivers, springs, aquifers, and streams are some of the main water sources in the world. All these sources are essential for people’s well-being.
Oceans
Oceans are the largest sources of water on the planet. There are five oceans in the entire world. They contain approximately 97% of all the earth’s water. Despite the massive quantities of the essential commodity, ocean water is not suitable for human consumption in its raw form. It contains high salt levels and other impurities that make it unsuitable for household use. However, countries situated in dry regions such as Saudi Arabia, the United Arab Emirates, China, Oman, and Australia use a technique known as desalination to purify ocean water. Desalination involves the striping of salts and other components found in ocean water. The process is not widely used due to huge costs and high energy levels involved. A popular mode of purifying salt water from the ocean is reverse-osmosis where water passes through microscopic pores and salts among other impurities are filtered.
Lakes
Lakes are an important source of livelihood for many people around the world. Scientists estimate that there are 117 million lakes throughout the world. Lakes are classified into two categories: salt-water lakes and freshwater lakes. Water found in lakes is put into different uses by the communities that live around the natural resource. The main use of lake water is in the fishing industry. Most people who live near lakes practice fishing. Farming communities also use lake water to irrigate their farms and boost their agricultural output. Additionally, water in lakes is used as a mode of transport from one point to another whereby people use boats or advanced equipment to travel across the water body.
Explanation: