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Before you start - The natural environment. Ecosystems
EduBook Organización
- 4086 visitas
Most of the energy used by living things originally comes from sunlight which is trapped by autotrophs (or producers). This energy is then transferred from the producers to all other living things…
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Think about it. Earthquakes
EduBook Organización
- 4094 visitas
Remember what you have studied in this section and answer the questions: Why do earthquakes occur where tectonic plates meet? Where do you think earthquakes are more dangerous, in the country or in…
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Final self-evaluation 02 - Prehistory
EduBook Organización
- 4058 visitas
Indicate whether each statement is true or false: Cave paintings are the first examples of art in human history. ➝ Cave painting consists of carvings and little sculptures. ➝ All cave paintings show…
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Before you start - Living things
EduBook Organización
- 4059 visitas
Didactic objectives Recognise the characteristics of living things. Identify the main activities of living things. Understand that living things are sensitive to their environment. Recognise that living…
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Summaries - The Plant Kingdom
EduBook Organización
- 3985 visitas
1. Plants Plants originated 500 million years ago from green algae in the sea. Plants are multicellular organisms with particular characteristics: They are held in place in the ground by roots. They are…
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Simple eggs and complex eggs
EduBook Organización
- 3991 visitas
All eggs protect and provide food for the zygote, and later the embryo. However, there are big differences in size and structure between simple eggs, like frog eggs, and complex eggs, like chicken eggs.…
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The primary sector. Agriculture
EduBook Organización
- 3974 visitas
1.1. The history of agriculture Agriculture, or the farming of land for produce, began in the Neolithic Age about 10 000 years ago and soon became the main economic activity all over the world. In the…
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Remember - The natural environment. Ecosystems
EduBook Organización
- 3991 visitas
Most of the energy used by living things originally comes from sunlight which is trapped by autotrophs (or producers). This energy is then transferred from the producers to all other living things…
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Check what I know
EduBook Organización
- 3979 visitas
Copy and complete the sentences. Use the words below: green - deciduous - stem - leaves - roots - food - evergreen All plants have l, a s and r. F travels through the stem. Leaves are usually g in…
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The economic crisis in Spain
EduBook Organización
- 3943 visitas
The effects of the crisis on different sectors The financial crisis that began in the United States reached Spain in 2008. The crisis affected all sectors of the economy, especially industry, tourism…