area that includes the region between latitudes 23.5 degrees N and 23.5 degrees S and recives the most solar radiation because the sun shines almost directly over those areas

the area that extends from 66.5 degrees N to 66.5 degrees S latitude at the poles that receives little or no solar radiation during the winter polar regions are never warm

an area that exist between the tropic and polar zones with moderate temperatures which make up most of the UNITED STATES

any structure or behavior that helps an organism survive in its environment

a period of reduced activity that occurs during the winter where as body temperatures drop and body processes are reduced

short periods of climatic change caused by changes in the amount of solar radiation an area receives

a climatic event that effects weather patterns in the tropical pacific ocean and the atmosphere

a natural heating process that occurs when certain gases in the earths atmosphere trap heat

an increase in temperatures on the earth

destroying and cutting down trees