Water management is the way we take care of water resources, which means lakes, rivers, oceans, and groundwater that we use for drinking, showering, growing food, or generating electricity.
Just as you have to take care of your toys, pets, and plants, adults and governments must take care of water resources too. They need to make rules and plans for how to use, store, and filter water, so there is enough of it for everyone, and it doesn't get too dirty or too scarce.
For example, if too many people throw trash into a river, or if factories dump chemicals, the water can become polluted and make people sick or harm animals. People have to clean it up or stop polluting it.
Also, if there's a drought or a flood, which means there's either too little or too much rain, people have to plan how to save or manage the water that's available or prevent the water from overflowing and causing damage.
Water management involves many jobs and technologies such as engineers, who design dams, pipes, and treatment plants, scientists who study water quality, conservationists who protect habitats, and economists who analyze the costs and benefits of different water uses.
So, water management is like being a good friend to the water, making sure it stays clean, healthy, and available, just like you like your toys, pets, and plants to be happy and well-cared for too.