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level: Level 1

Questions and Answers List

level questions: Level 1

QuestionAnswer
rain that contains large amounts of harmful chemicals as a result of burning substances such as coal and oilACID RAIN
a substance contained as an aerosol in a spray canAEROSOL SPRAY
harmful substances in the air, often consisting of waste from vehicles or industryAIR POLLUTION
no more individuals of some species alive anywhere in the world - the species has died out.ANIMAL EXTINCTION
the cutting down of trees in a large area, or the destruction of forests by peopleDEFORESTATION
a long period when there is little or no rainDROUGHT
the relationships between the air, land, water, animals, plants, etc., usually of a particular area, or the scientific study of thisECOLOGY
a type of animal that might stop existing because there are only a few of that type aliveENDANGERED ANIMALS
not now existingEXTINCT
a situation in which there is not enough food for a great number of people, causing illness and death, or a particular period when this happensFAMINE
to cause to fill or become covered with water, especially in a way that causes problemsFLOOD
a gradual increase in world temperatures caused by gases such as carbon dioxide that are collecting in the air around the earth and stopping heat escaping into spaceGLOBAL WARMING
an increase in the amount of carbon dioxide and other gases in the atmosphere, that is believed to be the cause of a gradual warming of the surface of the earthGREENHOUSE EFFECT
a rule, usually made by a government, that is used to order the way in which a society behavesLAWS
to turn from something solid into something soft or liquid, or to cause something to do thisMELT
noise, such as that from traffic, that upsets people where they live or work and is considered to be unhealthy for themNOISE POLLUTION
catching too many fish in an area of the sea, so that there are not many fish left thereOVERFISHING
a layer of air containing ozone high above the earth that prevents harmful ultraviolet light from the sun from reaching the earthOZONE LAYER
a forest in a tropical area that receives a lot of rainRAINFOREST
to sort and collect rubbish in order to treat it and produce useful materials that can be used againRECYCLE
an unnecessary or wrong use of material or things that are no longer wanted or neededRUBBISH WASTE
a mixture of smoke, gases, and chemicals, especially in cities, that makes the atmosphere difficult to breathe and harmful for healthSMOG
presence in groundwater of toxic chemicals and biological agents that exceed what is naturally found in the water and may pose a threat to human health.WATER POLLUTION
gases ejected from an engine as waste productsEXHAUST FUME