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Final Exam
Environmental Science
| Question | Answer |
|---|---|
| How has the human population changed since the 1800's? What factors are contributing to this change? ` | The population has changed tremendously in size. Life expectancy has risen to new highs and as has immigration |
| What are the 5 types of interactions between species? Name an example of each one | Predation -snake and rat (predator who eats the prey) Communization -frog & plant (one benefits & does not harm the other. Parasitism - humans & worms. Mutualism - bee & flower (both benefit) Amensalism - elephant & ant (elephant walks on the ant) |
| What is an ecological footprint? Which country has the largest ecological footprint? | The impact of a person or community on an environment. Chinas has the largest ecological footprint. |
| What is a limiting factor? Give an example of a limiting factor. | Anything that constraints a population size. Example is food and access to mates |
| What is biomagnification? | the concentration of toxins in an organism as a result of its ingesting other plants or animals in which the toxins are more widely disbursed. |
| What does exponential growth look like on a graph? What does logistic growth look like on a graph? | Graph with strongly curve upward. Increase then levels out |
| What is thermal pollution and what causes it? | Rapid change of temperature in a natural body of water which can be caused by human influence such as power plants |
| What is artificial eutrophication and what causes it? | The process that increases the amount of nutrients in a body of water which is caused by human activity using fertilizer, phosphate, etc |
| What is smog and what causes it? | A fog made heavier and denser by smoke and chemical fumes. mixture of various gases with dust and water vapor. It involves VOC, nitrogen oxide and sun light |
| What consequences might we expect if we experience a rise in global temperature? | Loss of sea life, elevated sea levels, more intense heat waves |
| What is ozone? What is damaging Earth's ozone layer? Why does this damage appear at Earth's poles? | Highly reactive colorless unstable toxic gas with a pungent odor and powerful oxidizing properties, formed from oxygen with three atoms (O3). |
| What are point source and nonpoint-source pollution? How are they different? What are some examples of each? | Point source is a specific source. Non-point source is combination of pollutions. Point source comes from one point. Example plant drainage ditch. Nonpoint source is various sources such as contaminants on a construction site or even from gardens |
| What is acid precipitation and what causes it? | Acid rain has elevated levels of hydrogen caused when sulfur dioxide and nitrogen oxide are released into the air |
| What are some advantages and disadvantages of using nuclear energy? How is nuclear waste stored? | Advantage is it is a reliable source of energy. Disadvantage is it is nonrenewable. It is stored in spent fuel pools, in dry containers, or in individualized temporary warehouses |
| What are some advantages and disadvantages of using wind to generate electricity? | It is renewable and clean. You have to depend on the weather for it to generate electricity |
| What are some advantages and disadvantages of fossil fuels? | Advantages is these plants can be built almost anywhere and the fuel is easy to store. Disadvantage is fossils are nonrenewable resources and are hazardous to nature |
| What are some examples of biomass energy? Where is it used the most? Disadvantages? | Wood, crops and garbage. Ethiopia. High oost and health issues |
| What are the most energy efficient vehicles available today? | Toyota, Tesia, Hyundia, Chevrolet |
| What are some ways that you can increase efficiency in your own home? | Lower your thermostat; seal all windows, unplug chargers, turn off water so no drips |
| What is the Kyoto Protocol? What was its purpose? | It is an international agreement to reduce greenhouse gas emissions significantly. The purpose is to reduce the emission of 6 greenhouse gases that contribute to global warming |
| Why do developing countries find it difficult to protect their environments? | Low-income, high cost (improvement market failure) |
| Identify three ways that people can conserve energy in their daily lives | Turn off lights; change heating systems; unplug devices |
| You heat your home with electric heat & wish to reduce the electric bill, so you decided to burn wood in a wood furnace. What are the environmental advantages and disadvantages of doing this? What other steps could you take to conserve electricity? | Advantage is you conserve energy, but the disadvantage is you cause biomass energy. To further conserve energy we can insulate our home, plant trees to help cool it. |
| Considering how much fresh water is used every day, why don't we run out of water? | Water is recycled |
| What is surface water? | water that collects on the ground, in a stream, river, lake, reservoirs, or ocean |
| What is nonpoint source pollution? | excess fertilizer, herbicides and insecticides from agricultural lands and residential areas |
| What is a reservoir? | a large natural or artificial lake used as a source of water supply |
| What is a watershed? | an area or range of land that separates waters flowing to different rivers, basins or seas |
| What is an aquifer | a body or permeable rock which can contain or transmit groundwater |
| What is Biodegradable | capable of being decomposed by bacteria or other living organicisms |
| What is renewable | capable of being renewed |
| Alternative | available as another possibility |
| CITES | Convention on International Trade in Endangered Species. |
| Montreal Protocol | international treaty designed to protect the ozone layer by phasing out the production of numerous substances that are responsible for ozone depletion |
| National Oceanic and Atmospheric Administration (NOAA) | forecast weather monitors |
| Environmental Protection Agency (EPA) | protects people and the environment from significant health risk |
| Abiolic | non-living (water, soil, stmosphere) |
| biolic | living (plants, animals, bacteria) |
Created by:
dwest1