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Calculate. Minerals (1)
EduBook Organización
- 1721 visitas
The sea provides us with many minerals. If a tonne of seawater is needed to extract 0.5 mg of gold, calculate how many tonnes are needed to extract enough gold to make a 30 g ring. Result: tonnes
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Moss and soil
EduBook Organización
- 1721 visitas
Mosses have a very important ecological role. They actively participate in forming the soil and prevent it from eroding and drying up: The rhizoids help to break down rock into small particles. When the…
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Reflect. Characteristics of echinoderms 3.2
EduBook Organización
- 1721 visitas
Why are echinoderms considered invertebrates?
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Answer. Our planet's relief 01
EduBook Organización
- 1723 visitas
How are the surface of the continents and the ocean floor related?
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Final self-evaluation 07 - The Earth's climate zones
EduBook Organización
- 1728 visitas
Complete the following sentences about Spain's landscapes with the correct words: The landscapes in the north and north east of the Peninsula are influenced by the , which makes the climate milder.…
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Answer. EU institutions 03
EduBook Organización
- 1725 visitas
What are the functions of the European Commission?
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Complete. Classification of energy sources 02
EduBook Organización
- 1727 visitas
Classify the following energy sources in the table:
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Analyse. Characteristics of large companies
EduBook Organización
- 1730 visitas
Give three characteristics of large companies: