You must have seen many advertisements about conservation of water. We know that 34th of earth's surface is filled with water. That is a huge amount of water. Then why should we conserve water? [3 MARKS]
You must have seen many advertisements about conservation of water. We know that 34th of earth's surface is filled with water. That is a huge amount of water. Then why should we conserve water? [3 MARKS]
Reasoning out: 3 Marks
It's true that about 34th of earth's surface is filled with water but not all of it can be used by us. The water in seas and oceans are saline water and cannot be used for day to day work. The fraction of usable water is very little and most of it is in the form of snow caps, glaciers. Only 0.006% water is available for use of all available in the form of rivers, lakes, ponds and ground water. Nowadays, even these sources are being contaminated due to industrial and agricultural activities. Also, due to increasing population and uneven rainfall there is shortage of usable water. So, we need to conserve water.
Reasoning out: 3 Marks
It's true that about 34th of earth's surface is filled with water but not all of it can be used by us. The water in seas and oceans are saline water and cannot be used for day to day work. The fraction of usable water is very little and most of it is in the form of snow caps, glaciers. Only 0.006% water is available for use of all available in the form of rivers, lakes, ponds and ground water. Nowadays, even these sources are being contaminated due to industrial and agricultural activities. Also, due to increasing population and uneven rainfall there is shortage of usable water. So, we need to conserve water.
