Examen de Inglés de Canarias (selectividad de 2007)

Carbon dioxide

Carbon dioxide (chemical formula CO2) is a colorless and odorless gas that is vital to life on Earth. This naturally occurring chemical compound is made up of a carbon atom covalently double bonded to two oxygen atoms. Carbon dioxide exists in Earth's atmosphere as a trace gas at a concentration of about 0.04 percent (400 ppm) by volume. Natural sources include volcanoes, hot springs and geysers, and it is freed from carbonate rocks by dissolution in water and acids. Because carbon dioxide is soluble in water, it occurs naturally in groundwater, rivers and lakes, in ice caps and glaciers and a…

Fuente: wikipedia.org

Tony Blair

Anthony Charles Lynton Blair (born 6 May 1953) is a British politician who served as the Prime Minister of the United Kingdom from 1997 to 2007 and the Leader of the Labour Party from 1994 to 2007.

Fuente: wikipedia.org

Stop Climate Chaos

Stop Climate Chaos is a climate change coalition of primarily environmental and international development NGOs that was formed in September 2005. The coalition ran the I Count campaign in 2006–07 and organised The Wave, a campaign focused on the climatic impacts of energy production which took place on 5 December 2009 in the run-up to the UN talks in Copenhagen. The coalition encourages individuals to lobby the UK government for what they see as positive policies on climate change.

Fuente: wikipedia.org