Natural Resources

2. urban pollution
4. Land is considered a _____ resource since it is something from Earth that living things use to meet needs
8. ______ energy can use the difference between high and low tides to help turn turbines to create electricity
11. Sun, wind, water, and geothermal energy are considered _____ energy resources since these resources can never run out
12. Using less water is one way to practice water conservation_______
13. A fuel is a substance that provides ____ as a result of a chemical change
15. The splitting of an atom's nucleus into two smaller nuclei is called ________
16. The energy generated by moving water in rivers is called _____ energy

1. Wood, leaves, and manure belong to a group of renewable energy sources called ____
3. Land that is set aside to protect if from environmental problems
5. Specific sources of pollution that can be identified are called ______
6. The three major fossil fuels are coal, oil, and ________
7. Fossil fuels are energy-rich because they contain _____
9. area where garbage is deposited and covered with soil
10. Wind energy is actually an indirect form of ____
14. Largest source of water pollution