Greenhouse EffectOnline version Understanding the Greenhouse Effect by Jose Mª Gonzalez Montero 1 The average temperature is ... a Falling down b Stable c Rising d Amazing 2 What have we got thanks to the greenhouse effect? a The weather b The temperature c The climate d The storms 3 Describe the greenhouse effect with your own words. Respuesta escrita 4 70% of the heat is retained by a Carbon dioxide b Oxygen c Solar rays d Rain forest 5 The industrial revolution took place in a In the 18th century b The middle age c In the 17th century d In the 19th century 6 The increase of temperature is responsible for……. (name at least three phenomena) Respuesta escrita 7 What do plants and trees absorb through the process of photosynthesis? a Oxygen b Carbon dioxide c Heat d Humidity 8 What can we do to fight against climate change? Selecciona una o varias respuestas a Reduce the emission of greenhouse gases b Turn off light bulbs c Recycle d Plant trees e Bicycling f Use energy saving light bulbs Explicación 1 The changes we are witnessing and those that are predicted are largely due to human behaviour. We are burning fossil fuels, and heating up the planet at the same time. We blow ever increasing amounts of carbon dioxide (CO2) into the atmosphere every year – 29 billion tonnes of it (2004) and rising – and this warms the globe. 2 Climate is a measure of the average pattern of variation in temperature, humidity, atmospheric pressure, wind, precipitation, atmospheric particle count and other meteorological variables in a given region over long periods of time 4 Carbon dioxide enters the atmosphere through burning fossil fuels (coal, natural gas and oil), solid waste, trees and wood products, and also as a result of certain chemical reactions. Carbon dioxide is removed from the atmosphere when it is absorbed by plants as part of the biological carbon cycle. 7 Photosynthesis is a process used by plants and other organisms to convert light energy, normally from the sun, into chemical energy that can be later released to fuel the organisms\' activities. This chemical energy is stored in carbohydrate molecules, such as sugars, which are synthesized from carbon dioxide and water
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