Is water scarcity related to less amount of water per head only? If not, then explain the other factors?

No, water scarcity is not related to less amount of water per head only. There are several other factors that contribute to water scarcity.

1. Climate Change: Changes in weather patterns can cause a decrease in the amount of rainfall in certain areas, leading to droughts and water scarcity.

2. Overuse of Water: In many areas, water is being used faster than it can be replenished. This is often due to overpopulation, but can also be caused by wasteful practices.

3. Pollution: Water pollution can also lead to water scarcity. If a water source becomes contaminated, it can no longer be used for drinking or irrigation.

4. Infrastructure: In some cases, water scarcity is caused by a lack of infrastructure. This can include a lack of pipes and pumps, or a lack of water treatment facilities.

5. Economic Disparity: In some cases, water scarcity is a result of economic disparity. Even if water is available, it may not be accessible to everyone due to its cost.

6. Political Factors: Political factors can also contribute to water scarcity. For example, disputes over water rights can lead to certain areas not having access to water.

7. Deforestation: Trees play a crucial role in the water cycle by helping to regulate the amount of water in the atmosphere and in the soil. When forests are cut down, it can disrupt this balance and lead to water scarcity.

So, while the amount of water available per person is certainly a factor in water scarcity, it is far from the only one.