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Economic agents
EduBook Organización
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3.1. What are economic agents? Economic agents are the people, groups or institutions involved in the economy. They produce, exchange or consume products or services. The three main economic agents are:…
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Did you know?
EduBook Organización
- 2412 visitas
A pure substance is not the same as a natural substance. For example, honey and olive oil are natural substances, but they are not pure substances. They are mixtures.
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Answer. Matter and materials
EduBook Organización
- 2120 visitas
Answer the following questions in your notebook: What are the properties of matter? What are the two different types of substances? What are the four changes of state of matter? What is filtration? What…
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True/false. Sponges
EduBook Organización
- 2105 visitas
Decide if the following statements are true or false: Sponges are the simplest type of animal that exists. Sponges can live in the water and on land. Sponges are usually regular in shape. They eat…
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Answer. Time measurement
EduBook Organización
- 1819 visitas
Remember what you have studied in this section and answer: How many years are there in a century? How many years are there in a millennium? How many centuries are there in a millennium?
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Complete. The Earth's surface.
EduBook Organización
- 1581 visitas
Complete this text with the correct words: Changes in the Earth's surface are caused by . are produced inside the geosphere. This energy is mainly produced by the of the plates. are produced in the…
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Final self-evaluation 01 - The relief and rivers of Spain
EduBook Organización
- 1283 visitas
Where are the Pyrenees located? Which are the most important river basins of the Peninsula? What is the Spanish coastline like? Into how many watersheds are the rivers of Spain divided?
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Vertebrates
EduBook Organización
- 1 lo usan
- 8131 visitas
What are vertebrates? Vertebrates are animals that have bones and a spinal column. They also have a head, torso and limbs. Groups of vertebrates We can classify vertebrates into five groups: Mammals…
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Check. Oceanic and continental landscapes
EduBook Organización
- 8163 visitas
Review what you have studied and answer the following questions: Where in the world are oceanic climates located? What are the characteristics of the rivers in oceanic landscapes? What are the…
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Vertebrates
EduBook Organización
- 6782 visitas
What are vertebrates? Vertebrates are animals that have bones and a spinal column. They also have a head, torso and limbs. Groups of vertebrates We can classify vertebrates into five groups: Mammals…