Final answer:
Water conducts electricity, hence touching electric switches with wet hands or throwing water on electric fires poses risks of electric shock or electrocution.
Step-by-step explanation:
When considering safety precautions related to electricity, it is important to understand the conductivity of water. Electric switches and water do not mix well because water can act as a conductor of electricity, allowing current to pass through the water and potentially through a person's body if they have wet hands. This can lead to electric shocks or even electrocution. Similarly, throwing water on an electric fire is dangerous because the water can conduct the electricity from the fire to surrounding areas or to the person throwing the water, resulting in injury or further spreading the fire.