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BeaverLocal 23
| Question | Answer |
|---|---|
| the study of the relationships between humans and the Earth | Environmental Science |
| Why would it be important to study the relationship between humans and the Earth? | it is important to develo ways to correct global problems from humans |
| The loops formed by warming and cooling air | convection cells |
| What determines the climate and creates oceanic circulation patterns | Convection Cells |
| What heats air molecules near Earth’s surface? | The sun's rays (creating convection cells) |
| Cold water rises from the ocean depths and carries nutrients upward | Upwelling |
| Upwelling pushes nutrients to the surface, supporting what? | Upwelling supports plankton thus leading to larger fish populations |
| What occurs when the warm surface water prevents upwelling from occurring | El Nino |
| What does El Nino do to fish populations? | Causes fish populations to decline because the nutrients cease to exist |
| What is a naturally occurring gas that protects living things from harmful UV rays? | O3 |
| What are ozone-destroying chemicals? | CFC's |
| What year was CFC's banned? | 1992 |
| What were CFC's used in? | coolants in refrigerators and air conditioners and as propellants |
| Can the ozone layer recover if we stop using CFC's? | Yes |
| What is a byproduct of cellular respiration? | Carbon Dioxide (CO2) |
| What is a component of photosynthesis? | Carbon Dioxide (CO2) |
| What is released when fossil fuels are burned? | Carbon Dioxide (CO2) |
| What forms a blanket around Earth and keep it at a temperature suitable for life? | Greenhouse Gases |
| How does global warming occur? | When the layer of greenhouse gases gets thick and traps too much heat in |
| What correlation exists that support global warming? | There are rising temperatures as well as rising CO2 concentrations |
| How many degrees is global temperature expected to rise in the next century? | 2 degrees C or 4 degrees F |
| What things can global warming affect? | rainfall patterns, soil moisture, sea level, crop growth, biodiversity, human diseases, |
| By 2050 what does the UN predict the human population to be? | 12.5 billion |
| What occurs when the population increases? | More fossil fuels are burned resulting in higher temperatures |
| the variety of organisms in a given area | Biodiversity |
| the amount of genetic variation | Genetic diversity |
| the most important measure of biodiversity | Genetic diversity |
| How many species have been identified on Earth? | 3 million |
| How many species are estimated to be on Earth? | 10-30 million |
| Where are many undiscovered species? | Tropical Rainforest |
| What leads to extinction? | Rapid destruction of habitats |
| How much of the tropical rainforests have been destroyed? | More than 1/2 |
| richer countries or private organizations pay off some of the debts of a developing country in exchange for them not cutting down their rainforest | Debt-for-nature swap (way to save biodiversity) |
| What importance to biodiversity considers the economic benefits that biodiversity provides for humans (food, medicine, etc.) | Utilitarian Value |
| What importance to biodiversity believes that all life-forms deserve to exist (intrinsic value) | Nonutilitarian Value |
| What type of biology tries to identify and maintain natural areas to preserve biodiversity | Conservation biology |
| What type of biology tries to convert damaged areas back into viable habitats | Restoration biology |
| Where do migratory birds spend spring and summer? | tundra and northern forests |
| Where do migratory birds migrate to in the fall? | Warmer climates |
| How many major flyways are in North America? | 4 |
| What are established along the flyways to allow birds a place to rest and eat during their long migrations | Wildlife refuges |
| What happened to the elk population in Yellowstone when the wolf population diminished? | The elk population exploded |
| What destroyed 50% of the wetlands in Florda? | Drainage canals which were built so that people could build homes |
| What are 4 benefits of wetlands? | 1) important habitats for wildlife; 2)purify drinking water; 3) replenish groundwater; 4) prevent flooding and beach erosion |
| increasing biodiversity in heavily developed areas | Urban ecology |
Created by:
kjones0722
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