|
|
 |
|
|
 |
|
What is energy conservation?
|
|
We use a lot of energy in our homes. Much of it comes from oil, coal, or gas, which are fossil fuels that will one day be used up. If we insulate our houses better, and trap the Sun's heat, we use less fuel. This is called energy conservation. We can also use everlasting energy sources, such as wind.
|
| |
Previous:
Back
|
Book:
Best Ever Q&A
|
Section:
Our World
|
Chapter:
Environment
|
|
|
|
 |
|
|
