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Chemical elements in the Universe and the Earth
EduBook Organización
- 1789 visitas
Chemical elements are found in different amounts in the Universe and on Earth. Hydrogen makes up 90% of all the matter in the Universe. The rest of the elements make up the remaining 10%. On Earth, the…
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Answer. Materials 02
EduBook Organización
- 1794 visitas
What is the difference between natural materials and artificial materials?
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Other components of our Solar System
EduBook Organización
- 1784 visitas
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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Choose. Pollutants
EduBook Organización
- 1791 visitas
Are the following substances primary or secondary pollutants? hydrocarbons carbonic acid nitric acid carbon monoxide sulphuric acid nitrogen oxides toxic metal particles
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Answer. Clay
EduBook Organización
- 1794 visitas
The sedimentary rock clay can be described as a very plastic material but it is not a synthetic material like plastic. Where does clay come from? How would you classify clay? What do we use clay for?
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Answer. Minerals and rocks (1)
EduBook Organización
- 1795 visitas
What is the softest material? What is the hardest mineral?
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Interpret. Poisonous mushrooms
EduBook Organización
- 1800 visitas
The following graph shows the number of deaths caused by eating poisonous mushrooms in a Spanish autonomous community from 2000 to 2009. Comment on the number of deaths. What could be the causes for a…
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Final evaluation 10 - The political organisation of society
EduBook Organización
- 1797 visitas
How has globalisation affected the development of the state?
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Interpret. Institutions of the European Union
EduBook Organización
- 1788 visitas
Look at the diagram and answer the questions: Which EU institutions have the capacity to make decisions? Which bodies does the European Parliament control?