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Self-evaluation 3 - Society and the environment
EduBook Organización
- 1607 visitas
Which concept refers to each of the following definitions: Contamination of the atmosphere caused by different agents, such as factories and motor vehicles. A gradual alteration in the planet's…
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True/false. European industry
EduBook Organización
- 1602 visitas
Are the following statements true or false? Industry employs 25% of the EU's active working population. The Ruhr valley is the UK's main industrial area. Fragmentation in the EU has created…
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Mycorrhizas, a beneficial association
EduBook Organización
- 1598 visitas
Certain fungi in the soil live with the roots of the majority of plants in a generally mutualistic association called a mycorrhiza. Mycorrhizas are found in the majority of trees in tropical zones and…
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The components of air
EduBook Organización
- 1 lo usan
- 1381 visitas
2.1. Air: a mixture of gases Air is made up of a mixture of gases. The main gases are nitrogen and oxygen. Other gases such as water vapour, carbon dioxide and ozone are present in smaller quantities.…
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Learn... Separation of mixtures
EduBook Organización
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There are different techniques to separate the components of a mixture. In addition to evaporation, which we already know, there is: Filtration Filtration is used to separate a liquid from an insoluble…
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Other components of our Solar System
EduBook Organización
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4.1. Satellites Satellites are small bodies that do not move around the Sun. They move around other bodies in the Solar System. Most satellites are spherical, such as the Moon, although there are also…
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Grammar - Go back to the text
EduBook Organización
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Adverbs We form the adverb of an adjective by adding -ly – quickly With adjectives ending in y such as easy we drop the y and add ily – easily For words ending in e, like incredible, we drop the e…
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Final self-evaluation T14 03 - The world today
EduBook Organización
- 1419 visitas
Rewrite the sentences and correct the mistakes: After the 9/11 attacks, the USA declared a war on terrorism, invading Afghanistan in 2002 and Iraq in 2003. The reunification of the USSR happened in…
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Learn. Calculating distances on maps
EduBook Organización
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The scale of a map indicates how much the area that is represented has been reduced. The numerical scale is a fraction: the larger the denominator, the greater the reduction. These maps are called…