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Introduction - The First World War and the Russian Revolution (1914-1939)
EduBook Organización
2002 visitas
At the beginning of the 20th century, economic rivalry between the nations and the colonies led to an increase in tension amongst the European states. An arms race began that eventually led to the…
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Match. Repercussions of sprawling cities
EduBook Organización
1944 visitas
Match the following aspects of sprawling cities with the correct repercussion: An increase in the need for infrastructure, such as street lighting, water and gas supplies, rubbish collection, etc. The…
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Unit 10: The Plant Kingdom
EduBook Organización
1873 visitas
Aerobic organism (n): an organism which requires oxygen to live. angiosperm (n): a plant which produces seeds that are protected by a fruit. bract (n): a hard, specialised leaf that is associated with…
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Learn... Insect metamorphosis
EduBook Organización
1855 visitas
There are two different life cycles of insects, although all insects hatch from eggs. In some cases, the insect which hatches simply grows and after several moults, becomes an adult. The majority of…
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Unit 8: The great geographical discoveries
EduBook Organización
1822 visitas
Astrolabe (n): an instrument used to make astronomical measurements, and for calculating latitude in navigation. cabildo (n): a municipal council that governed colonial towns in America. caravel (n): a…
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True or false. Measurement
EduBook Organización
1829 visitas
Are the following sentences true or false? Volume is an example of magnitude. To measure a magnitude, we compare it with another magnitude. To measure something we have to establish the magnitude of an…
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Final self-evaluation 1.6 - Matter and Materials
EduBook Organización
1822 visitas
Complete the following sentences with the missing words: A group of atoms is called a . move around the nucleus of an atom. are made up of two or more different chemical elements. The formula for is…
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Sound and noise
EduBook Organización
1785 visitas
What is sound? Sound is produced by vibrating objects. We perceive sound because we use our sense of hearing. When an object produces a sound, it travels through the air or other objects (walls,…
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Final self-evaluation 10 - The Atmosphere
EduBook Organización
1613 visitas
Complete the following sentences with the missing words: Carbon dioxide provokes an increase in the greenhouse effect. Acid harms lakes, rivers, forests and buildings. Atmospheric pressure is measured…
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Property speculation
EduBook Organización
1592 visitas
An increase in the population of a city causes a rise in demand for land to build housing, services and facilities. This causes prices to rise and urban land, as a result, becomes an asset to be bought…
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