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Global Warming cycle
Gr.10 Biogeochemical Cycles & Global Warming
| Question | Answer |
|---|---|
| What is an albedo? | the percentage of light that gets reflected back by a certain material |
| What type of gas decomposes the ozone layer? | CFC's (chlorofluorocarbons) |
| What does the ozone layer protect us from? | Harmful UV rays that come from the Sun |
| What type of greenhouse gas comes from bacteria breaking down waste? | Methane |
| What type of greenhouse gas accounts for most of the greenhouse effect? | water vapour |
| What type of greenhouse gas mainly comes from combustion of fuels? | carbon dioxide |
| What is the anthropogenic greenhouse effect? | the increased ability for the atmosphere to absorb more infrared heat due to man made activities |
| What percentage of UV rays does the ozone layer reflect back into space? | 30% |
| What type of radiation is emitted by the ground and absorbed by the greenhouse gas layer? | Infrared |
| What is conduction? | the transfer of heat between solid atoms |
| What is convection/advection? | the transfer of heat between liquid or gas atoms |
| What is the Great Conveyor Belt? | The rising of water near the equator and the sinking of water near the poles that causes ocean convection currents. |
| What two factors causes ocean water to be more dense? | colder and higher salinity |
| What is the term that describes the recycling of matter in the environment? | Biogeochemical |
| What is respiration? | Consumers breathe in oxygen and breathe out carbon dioxide |
| What term is used to describe plants making sugar and oxygen by using sunlight, CO2 & H2O? | Photosynthesis |
| What is produced when CO2 is recycled by dissolving in the oceans? | Limestone |
| What is nitrogen fixation? | Converting N2 gas into nitrates (NO3-) |
| What type of organism converts dead organisms into sediment? | Decomposers |
| What factors would cause dead organisms to convert into fossil fuels? | low oxygen environments, high pressure, high temperature, millions of years |
| What in the environment causes N2 to react with oxygen to form nitrates? | Lightening |
| What can be found in the roots of plants that converts N2 in the soil to nitrates (NO3-)? | Nitrogen fixing bacteria |
| What industrial process makes NH3 from N2 and H2? | The Haber Process |
| What is the main source of smog (NO2, NO)? | Automobile exhaust |
| What is the main issue of using fertilizer in crops? | Excess fertilizer spills into lakes by run off causing more algae to grow which uses up oxygen in the lake |
Created by:
syoung324
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