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Of the total amount of water present on the earth, the water available for human use is about
- a)20%
- b)2%
- c)1%
- d)10%
Correct answer is option 'C'. Can you explain this answer?
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Of the total amount of water present on the earth, the water available...
Of the total amount of water present on the earth, the water available for human use is about 1% only.
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Of the total amount of water present on the earth, the water available...
Water Availability for Human Use
- The total amount of water present on Earth is approximately 1.4 billion cubic kilometers (km3) or 1,400,000,000,000,000,000,000 liters.
- However, the majority of this water, about 97.5%, is saltwater found in the oceans and seas, which is not suitable for human use.
- Only a small percentage of the Earth's water is freshwater, which is essential for human survival and various activities.
Freshwater Distribution
- Freshwater is mainly found in the form of ice caps and glaciers, underground water, and surface water in rivers, lakes, and swamps.
- Ice caps and glaciers store about 68.7% of the planet's freshwater, but it is not easily accessible for human use as it is in the form of solid ice.
- Underground water, known as groundwater, accounts for approximately 30.1% of the Earth's freshwater. It is stored in aquifers and can be accessed through wells and boreholes.
- Surface water, found in rivers, lakes, and swamps, makes up only a small fraction of freshwater resources, about 0.3%.
Water Available for Human Use
- Out of the total freshwater resources, only a fraction of it is available for human use.
- This usable freshwater is known as the accessible or renewable water resource.
- Accessible water is defined as the water that can be used for drinking, sanitation, agriculture, and industrial purposes.
- The accessible water primarily comes from rivers, lakes, and underground sources that can be easily accessed and utilized.
- However, even this accessible water is limited, and its availability varies in different regions depending on factors such as climate, rainfall, and population density.
Water Available for Human Use Percentage
- The water available for human use is estimated to be around 1% of the total water present on Earth.
- This means that out of the total 1.4 billion km3 of water, only about 14 million km3 is available for human use.
- The remaining water is either saltwater or freshwater that is inaccessible due to being trapped in glaciers or underground.
Conclusion
- The water available for human use is a small fraction of the total water present on Earth.
- It is crucial to manage and conserve this limited freshwater resource to ensure its sustainable use for current and future generations.
- The total amount of water present on Earth is approximately 1.4 billion cubic kilometers (km3) or 1,400,000,000,000,000,000,000 liters.
- However, the majority of this water, about 97.5%, is saltwater found in the oceans and seas, which is not suitable for human use.
- Only a small percentage of the Earth's water is freshwater, which is essential for human survival and various activities.
Freshwater Distribution
- Freshwater is mainly found in the form of ice caps and glaciers, underground water, and surface water in rivers, lakes, and swamps.
- Ice caps and glaciers store about 68.7% of the planet's freshwater, but it is not easily accessible for human use as it is in the form of solid ice.
- Underground water, known as groundwater, accounts for approximately 30.1% of the Earth's freshwater. It is stored in aquifers and can be accessed through wells and boreholes.
- Surface water, found in rivers, lakes, and swamps, makes up only a small fraction of freshwater resources, about 0.3%.
Water Available for Human Use
- Out of the total freshwater resources, only a fraction of it is available for human use.
- This usable freshwater is known as the accessible or renewable water resource.
- Accessible water is defined as the water that can be used for drinking, sanitation, agriculture, and industrial purposes.
- The accessible water primarily comes from rivers, lakes, and underground sources that can be easily accessed and utilized.
- However, even this accessible water is limited, and its availability varies in different regions depending on factors such as climate, rainfall, and population density.
Water Available for Human Use Percentage
- The water available for human use is estimated to be around 1% of the total water present on Earth.
- This means that out of the total 1.4 billion km3 of water, only about 14 million km3 is available for human use.
- The remaining water is either saltwater or freshwater that is inaccessible due to being trapped in glaciers or underground.
Conclusion
- The water available for human use is a small fraction of the total water present on Earth.
- It is crucial to manage and conserve this limited freshwater resource to ensure its sustainable use for current and future generations.
Community Answer
Of the total amount of water present on the earth, the water available...
Because most of the water on Earth is (3/4)is salty at all
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Of the total amount of water present on the earth, the water available for human use is abouta)20%b)2%c)1%d)10%Correct answer is option 'C'. Can you explain this answer?
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