| A | B |
|---|
| four components of air | nitrogen, oxygen, water vapor, carbon dioxide |
| nitrogen cycle | nature recycles materials |
| most imp. component gas in our atmosphere | oxygen |
| carbon dioxide absorbs__ | heat |
| carbon dioxide acts as a ___ gas. | greenhouse effect |
| organisms with chlorophyl +sunlight+CO2+water= | photsynthesis |
| simple sugar; impor. carb. | glucose |
| animals and plants use it for energy | glucose |
| algae; one-celled organisms | diatoms |
| compounds that are or were alive | organic |
| compounds that are not alive and were never alive | inorganic |
| radioactive gas; invisible; no smell | radon |
| one reason temp. decreases with height in troposphere | fewer air molecules |
| 7 to 28 miles above sea level | stratosphere |
| region full of concentrations of ions | ionosphere |
| four ionospheric layers | D, E F1 and F2 regions |
| glowing of atmosph. atoms impacted by charged particles | aurora |
| stream of ionized hydrogen produces effects in upper atmosphere | solar wind |
| luminous, emission Northern Hemisphere | Aurora Borealis |
| luminous, emission Southern Hemisphere | Aurora Australis |
| plants emitt surplus moisture through their pores | transpiration |
| respiration | digested food+oxygen=release of energy and CO2 |
| argon | inert gas |
| ozone | form of oxygen; pollutant in troposphere |
| components of ozone | nitrogen, oxygen, argon, CO2, water vapor |
