GLOSSARY: a-g Uda : Global Warming

1. GLOSSARY: a-gUda: Global Warming

2. A • ATMOSPHERE: a layer of gasessorrounding a material body of sufficient mass thatisheld in place by the gravity of the mass. • ALTERATION: a change in something or the process of changingit. • AEROSOL: a suspensionof fine solidparticles or liquiddroplets in a gas. • AVERAGE: the usuallevel or amount for mostpeople or things. • AIR: the gasesaround the Earth, whichwebreathe. • ACID: a liquidchemicalsubstancethathas a pH of lessthan 7. • AREA: a specificplace. • AGE: period of history or in someone’s life; the state of beingold. • AMOUNT: a quantity. • ACCELERATE: to start goingfaster. • ADAPT: to getused to doingsomething.

3. B • BULB:the glass part of an electric light, where the light shines from. • BAULK: to refuse obstinately or abruptly. • BURN: to damage or destroy something with fire or heat. • BEAR: any of the various, usually omnivorous, mammals of the Ursidae with a shaggy coat and a short tail, walking with the entire lower surface of their foot touching the ground. • BIOSPHERE: the part of the Earth and its atmosphere in which living organisms exist or that is capable of supporting life. The living organisms and their environment compose the biosphere. • BENEFIT : an advantage or improvementthatyouget from something.

4. C • COAL: ablack mineral, used as a fuel, which is dug from the Earth and burnt to produce heat. It derives from fossilized plants and consists of amorphous carbon with various organic and some inorganic compounds. • CARBON: a natural abundant non metallic element that occurs in many inorganic and in all organic compounds; it exists freely as graphite and diamond and as a constituent of coal, limestone and petroleum; it is capable of chemical self-bonding to form an enormous number of chemically, biologically and commercially important molecules. • CLIMATE: the meteorological conditions, including temperature, precipitation and wind, that characteristically prevail in a particular region. • CARBON DIOXIDE: acolourless, odourless, incombustiblegas: CO2, formedduringrespiration, combustionand organicdecomposition and used in foodrefrigeration, carbonatedbeverages, inertatmosphere, fireextinguishers, and aerosols. Itisalsocalledcarbonicacid gas. • CHLOROFLUOROCARBONS: varioushalocarboncompoundsconsisting of carbon, hydrogen, chlorine, and fluorine, once usedwidelyas aerosol propellants and refrigerants. Chlorofluorocarbons are believedto cause depletionof the atmosphericozonelayer.

5. D • DUST: a cloud of fine, dry particles. • DEFORESTATION: the cutting down and removal of all or most of the trees in a forested area. Deforestation can erode soil, it contributes to desertification and the pollution of waterways and decreases biodiversity by destroying natural habitat. • DANGER: a source of risk or peril. • DEVELOP: to expand or enlarge. • DEBATE: to discuss a subject formally so that you can make a decision or solve a problem. • DATA: factual information, especially information organized for analysis or used to reason or make decisions. • DEAL: an agreement or arrangement, especially in business.

6. E • EFFECT: something brought about by a cause or agent; a result. • EARTH: the planet we live on. • ENVIRONMENT: the complex of social and cultural conditions affecting the nature of an individual or a community. • EMISSION: a substance that is sent out into the air, or the act of sending it out. • ECOLOGY: the relationship of living things to each other and to their environment, or the scientific study of this. • ECONOMY: the system by which a country’s money and goods are produced and used. • ECOSYSTEM: all the animals and plants in an area, and their relationship to each other and their environment.

7. F • FOSSIL: aremnant or trace of an organism of a past geologic age, such as a skeleton or leaf imprint, embedded and preserved in rock. • FUEL: a substance such as coal, gas or oil which can be burned to produce heat or power. • FLOOD: a very large amount of water that covers an area which is usually dry. • FOOD: material, usually of plant or animal origin, that contains or consists of essential body nutrients, such as carbohydrates, fats, proteins, vitamins, or minerals, ingested and assimilated by an organism to produce energy, stimulate growth and maintain life. • FREEZE: to become solid and hard because of a very cold temperature.

8. G • GREENHOUSE: astructure, primarily of glass, in which temperature and humidity can be controlled for the cultivation or protection of plants. • GREENHOUSE EFFECT: the phenomenon whereby the Earth's atmosphere traps solar radiation, caused by the presence in it of gases such as carbon dioxide, water vapourand methane that, on allowing sunlight to pass through, absorb the heat radiated back from the Earth's surface. • GAS: a clear substance like air that is burned to give heat for cooking and heating. • GLACIER: a huge mass of ice slowly flowing over a land mass, made of compacted snow in an area where snow accumulation exceeds melting and sublimation. • GLOBAL WARMING: an increase in the average temperature of the Earth's atmosphere, especially a sustained increase sufficient to cause climatic changes. • GROW: to get bigger in size through a natural process. • GLOBE: a round object with a map of the Earth drawn on it.

9. Liceo Scientifico Statale«G. Galilei» Pescaraa. s. 2012-2013FABIO DI GIROLAMOClass 2^AEnglish Teacher: Prof.ssa Miscia Roberta