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Answer. Mixtures of materials
EduBook Organización
- 2038 visitas
Answer the following question: What is the name of an homogeneous mixture of substances in which the main constituent is metal?
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Complete. The movement of the Earth
EduBook Organización
- 2053 visitas
Complete the sentences with the missing words: and are a consequence of the Earth's rotation. The Earth on its own axis and around the Sun. A leap year lasts for days. The number of hours of…
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Answer. The Earth, a planet of the Solar System 01
EduBook Organización
- 2047 visitas
Describe the Earth's orbit.
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Final self-evaluation 9 - The Hydrosphere
EduBook Organización
- 2040 visitas
Complete the following sentences with the missing words: Drinking dirty is a major cause of illness. Human beings should only consume water. Three quarters of the Earth's is covered by oceans. Waste…
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Did you know?
EduBook Organización
- 2038 visitas
The continents occupy 149 million km2, and the oceans 361 million km2. There are regions of the continents that are a little more than 8 km high. There are trenches in the oceans that are almost 11 km deep.
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Answer. Bacteria and humans 4.2
EduBook Organización
- 2044 visitas
What are bacteria used for in medicine?
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Investigate. Marine research in Spain
EduBook Organización
- 2038 visitas
If you want to know more about marine research in Spain, go to the web site of the Instituto Español de Oceanografía (IEO): http://www.tiching.com/18283. Look at the map of Spain and find out where…
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Nuclear power stations in Japan
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- 2041 visitas
Japan does not have many of its own energy resources and so it has to import them in order to ensure economic growth. To try and solve this problem, it began investing in nuclear energy in the 1970s.…
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Answer. Alternative energy sources 01
EduBook Organización
- 2045 visitas
What are the most common forms of alternative energy? Can you think of any others?