Final answer:
The high-voltage wires that you see connected to tall metal-frame towers are held aloft by insulating connectors, and these wires are not wrapped in an insulating material.
Step-by-step explanation:
False. The high-voltage wires that you see connected to tall metal-frame towers are not wrapped in an insulating material. These wires are held aloft by insulating connectors, which prevent the electricity from flowing through the metal tower and into the ground. This is crucial for safety reasons, as it protects people and wildlife from coming into contact with high-voltage electricity.