Term
| Why is water a scarce resource? |
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Definition
| Because 97% is salt water |
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Term
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Definition
| The water stored in soil and rock beneath the Earth's surface. |
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Term
| What causes water shortages? |
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Definition
| When people use water in an area faster than the water cycle can be replaced. |
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Term
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Definition
| Substances that cause pollution. |
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Term
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Definition
| human waste that goes down sinks, showers and toilets. |
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Term
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Definition
| Chemicals that kill crop destroying organisms. |
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Term
| True or False? Is heat a pollutant? |
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Definition
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Term
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Definition
| Particles of rock or sand. |
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Term
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Definition
| Pollutants that are released into the air. |
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Term
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Definition
| A thick brownish haze formed when certain gases in the air react with sunlight. Can cause eye and throat irritation and breathing problems. |
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Term
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Definition
| A thick brownish haze formed when certain gases in the air react with sunlight. Can cause eye and throat irritation and breathing problems. |
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Term
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Definition
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Term
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Definition
| A layer of warm air traps polluted air close to Earth's surface. |
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Term
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Definition
| Precipitation that is more acidic than normal because of air pollution. |
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Term
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Definition
| A colorless, odorless gas that is radioactive. |
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Term
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Definition
| The construction of buildings, roads, bridges, dams, and other structures. |
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Term
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Definition
| The layer of dead leaves and grass on top of the soil. |
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Term
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Definition
| An upper layer of soil consisting of rock fragments,nutrients, water,air and decaying plant and animal matter than soil. |
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Term
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Definition
| The layer of soil below topsoil that has less plant and animal matter. |
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Term
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Definition
| Where soil begins. Rock that makes up earths crust. |
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Term
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Definition
| The process by which water,wind, or ice moves particles of rock or soil. |
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Term
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Definition
| The situation that arises when more soil nutrients are used than the decomposers can supply. |
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Term
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Definition
| A substance that provides nutrients to help crops grow better. |
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Term
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Definition
| The advance of desertlike conditions into areas that previously were fertile. |
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Term
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Definition
| A period of less rain than normal. |
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Term
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Definition
| The process of restoring land to a more natural state. |
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Term
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Definition
| Waste produced in homes, business and schools. |
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Term
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Definition
| The burning of solid waste. |
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Term
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Definition
| Polluted liquid produced by water passing through buried waste in a landfill. |
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Term
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Definition
| A landfill that holds nonhazardous waste such as municipal solid waste and construction debris. |
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Term
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Definition
| The process of reclaiming and reusing raw materials. |
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Term
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Definition
| Capable of being broken down by bacteria and other decomposers. |
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Term
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Definition
| The process of helping biodegradable wastes to decompose naturally. |
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Term
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Definition
| A material that can be harmful if it is not properly disposed of. |
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Term
| How much of the Earth is land? |
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Definition
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Term
| Name three uses that change the land. |
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Definition
| Agriculture, mining, an development. |
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Term
| Name four reasons why some of the land is not able to be farmed. |
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Definition
| Too wet, salty, dry or mountainous. |
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Term
| How is new farmland created? |
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Definition
| Clearing forest, draining wetlands and irrigating deserts. |
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Term
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Definition
| It leaves the soil exposed to the wind and takes years for it to become fertile again for plants. |
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Term
| More people mean more of what? |
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Definition
| More houses, roads and bridges. |
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Term
| Fertile soil is made up of? |
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Definition
| Litter, topsoil, subsoil and bedrock. |
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Term
| Poor soil management can result in 3 problems. |
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Definition
| Erosion, nutrient depletion, and desertification. |
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Term
| Terracing and windbreaks are 2 good ways farmers prevent what? |
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Definition
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Term
| What can heat produced by burning waste generate? |
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Definition
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Term
| Most recycling focuses on four major categories of products. Name them. |
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Definition
| Metal, plastic, glass and paper. |
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Term
| What are the three R's of recycling? |
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Definition
| Reduce, Reuse and Recycle. |
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Term
| Name the four classified categories of hazardous wastes. |
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Definition
| Toxic/poisonous,explosive, flammable, corrosive wastes. |
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Term
| Name the three ways to get rid of waste. |
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Definition
| Burning, burying and recycling. |
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Term
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Definition
| layer of the upper atmosphere about 30 km above earth's surface. |
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Term
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Definition
| a prediction that an increase in carbon diozide levels will cause the average temperature to continue to rise. |
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Term
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Definition
| the trapping of heat near earth's surface. |
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Term
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Definition
| human-made gases containing chlorine and fluorine. |
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Term
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Definition
| a layer of warm air prevents the rising air from escaping. |
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