by making an appropriate assumptions, give an estimate of the daily city water demand

To estimate the daily city water demand, we can follow these steps:

1. Estimate the Population of the City: The first step is to know the population of the city. This information can usually be found in census data or estimated from growth rates.

2. Estimate the Per Capita Water Use: The next step is to estimate the average amount of water used per person per day. This can vary greatly depending on the location and lifestyle of the people. For example, in the United States, the average person uses about 80-100 gallons of water per day. In less developed countries, this number can be significantly lower.

3. Calculate the Total Water Demand: Multiply the population of the city by the per capita water use to get the total water demand for the city. For example, if a city has a population of 1 million people and the average person uses 100 gallons of water per day, the total water demand would be 100 million gallons per day.

4. Consider Other Factors: Other factors can also affect the total water demand. For example, if the city has a lot of industries that use water, the total water demand could be higher. Similarly, if the city has implemented water conservation measures, the total water demand could be lower.

5. Adjust for Seasonal Variations: Water demand can also vary by season. For example, in the summer, people might use more water for things like watering lawns and gardens. So, you might need to adjust your estimate based on the time of year.

Remember, this is a rough estimate and the actual water demand could be higher or lower depending on a variety of factors.