Food and Nutrition

2. the entire range of wavelengths or frequencies of electromagnetic radiation extending from gamma rays to the longest radio waves.
3. the atmospheric gases that contribute to the greenhouse effect by absorbing infrared radiation.
6. to rid of impurities;cleanse.
8. transfer of heat in a fluid when higher temperature fluids expand and moves creating heat transfer
12. to be taken into a material without transmission or reflection.
13. material used to store thermal energy. Stone, concrete, adobe brick and water works best.
15. to cut down and clear away trees or forrest.
16. a hydrocarbon deposit deprived from living matter of a previous geological time used for coal, petroleum,oil.
17. the area or environment where a person or community lives.

1. transfer of heat from a region og higher temperature to a region of lower temperature by increased kinetic energy moving from molecule to molecule.
2. the process of destruction of a surface by abrasive action
4. an increase in the average temperature of the Earths atmosphere.
5. a specific type of curved shape used in solar through collectors.the shape focuses at the sun at 30 to 100 times its normal intensity achieve temperature of more than 400 degrees.
7. the emission and propagation of energy in the form of electromagnetic waves.
9. to allow to pass through a material.
10. a non conductive material used to prevent the transfer of heat, electricity or sound.
11. the energy an object has due to the motion of its particles
14. to cause to bend back or return upon striking a surface