| Question | Answer |
| What type of factors are trees, mushrooms, bacteria, and birds? | biotic
|
What type of factors are water sunlight, soil, and precipitation? | abiotic
| What is the conversion of water to the vapor state from the leaves of plants? | transpiration
| What is the cooling of water in the atmosphere to produce clouds? | condensation
| What is water that is absorbed into the soil and becomes groundwater? | infiltration
| What is the build-up of pesticides or other pollutants in the fatty tissues of aquatic animals that increases as it moves through the food chain? |
| What process removes carbon dioxide from the atmosphere? | photosynthesis
| What process returns carbon dioxide to the atmosphere? | cellular respiration
| What does CFCs in aerosol cans and refrigerants damage? | ozone layer
| The build-up of what gas from burning of fossil fuels has led to global warming? | carbon dioxide
| What gas is released by photosynthesis? | oxygen
| What can result when nitrogen-rich fertilizers run-off into a body of water? | algal bloom
| What process converts atmospheric nitrogen into ammonia? | nitrogen fixation
| What process converts ammonia in the soil into nitrates? | nitrification
| What process occurs during decomposition and converts nitrogen into ammonia? | ammonification
| What process returns nitrogen in the soil back to the atmosphere? | denitrification
| Phosphorous is needed to make which two compounds? | DNA and ATP
| How is the phosphorous cycle different from the other cycles? | it is local, not global |
