1. LORAS

_________ energy comes from the sun.

2. NWID

Renewable energy sources include _________, sun, and falling water, and can never be used up.

3. SUE ESLS

To conserve means to _____  _________ of something or to use it more carefully so it lasts longer.

4. EGERYN

Your conservation efforts make your home more _________ efficient.

5. THEA

Global warming means that the earth is getting too warm because certain gases in the air trap _________ from the sun.