Briefly explain why adding insulation to an attic helps reduce heating costs.

Insulation reduces the exchange of heat through a surface such as a wall, attic, duct or roof. In a well-insulated home, less warm air escapes from the house during the winter, and less cool air escapes during the summer, reducing the amount of energy needed for heating and cooling

they are made of gases.

they have a spherical shape.

they make energy through fusion.

can you attach the